Performance Guide

A beginner-friendly explanation of what Arbiter detects, what Quick Fix buttons change, and how to improve FPS without guessing.

Scope clarity: Arbiter identifies performance issues automatically, but system changes are only applied when you click Apply Fix and confirm. No silent background tuning.

What Arbiter Identifies (Click to Learn)

Each card explains the metric in plain language and what to do next. Hover highlighted terms for quick definitions.

Who is limiting your FPS right now: CPU, GPU, or neither.

What it means

If GPU usage is maxed and CPU has headroom, graphics settings usually matter most. If CPU is saturated while GPU is underused, background load or CPU-heavy settings may be the bottleneck.

Beginner symptoms

  • High GPU load + lower FPS in heavy scenes = graphics bottleneck
  • High CPU load + unstable FPS = CPU-side contention
Tip: Change one setting at a time, then re-capture.
How smooth your game feels, not just average FPS.

What it means

Average FPS can look good while gameplay still feels choppy. 1% lows and frame pacing reveal those hitches.

Beginner symptoms

  • Game feels “stuttery” despite decent average FPS
  • Mouse movement feels uneven during camera pans
Tip: Improving smoothness often feels better than chasing raw FPS.
Heat can force CPU/GPU clocks down and create stutter.

What it means

When temperatures climb too high, hardware protects itself by reducing speed. That can hurt FPS and frame consistency.

Beginner actions

  • Clean dust filters / improve airflow
  • Increase fan curve modestly
  • Retest after cooling changes
Driver spikes can cause micro-freezes, pops, and input lag.

What it means

DPC/ISR spikes often come from audio, network, or storage drivers and can disrupt frame delivery.

Beginner actions

  • Update motherboard, audio, and network drivers
  • Disable unnecessary overlays/services while gaming
Low free RAM can trigger disk paging and stutters.

What it means

When RAM is tight, Windows moves data to disk/page file (paging). That can create hitching during gameplay.

Beginner actions

  • Close heavy background apps (browser tabs, launchers)
  • Keep enough free disk space for paging
Background disk activity can interrupt asset streaming.

What it means

If updates, indexing, or antivirus scan at the wrong time, games can hitch while loading assets due to storage I/O contention.

Beginner actions

  • Pause heavy downloads/updates while gaming
  • Prefer SSD/NVMe install locations when possible

Quick Glossary (Novice Friendly)

Short definitions of common terms you’ll see in reports.

1% Low FPS

Represents worst-case smoothness. If this is far below average FPS, gameplay may feel hitchy.

Frame Pacing

How evenly frames arrive. Even pacing feels smooth, uneven pacing feels stuttery.

DPC / ISR

Driver-level interrupt handling. Spikes can cause input lag, audio pops, and frame hitches.

Thermal Throttling

Hardware slows itself down to control heat, which can lower FPS and consistency.

Paging

Windows offloads RAM data to disk when memory is tight. This is slower and can stutter.

Bottleneck

The component currently limiting performance (often CPU or GPU, depending on scene/settings).

What Quick Fixes Are Available (All 15)

These are guided, user-confirmed system setting changes—not hidden automation. ⚡ = has an Apply Fix button in the app. 📋 = manual steps only.

⚡ Power Management

Ensures CPU runs at full speed—prevents throttling during gaming.

What changes

Activates the High Performance power scheme so Windows stops aggressively downclocking the CPU between frames.

Manual path

Control Panel → Power Options → Select High Performance.

Hidden Windows plan for maximum CPU headroom—best for desktops.

What changes

Unlocks and activates the Ultimate Performance scheme, removing remaining park/throttle behavior.

Manual path

Admin PowerShell: powercfg -duplicatescheme e9a42b02-d5df-448d-aa00-03f14749eb61

Note: Requires restart to take full effect.
Keeps USB devices active—reduces input lag on peripherals.

What changes

Disables the power setting that lets Windows idle USB ports, which can cause brief input device stalls.

Manual path

Power Options → Advanced → USB settings → USB selective suspend → Disabled.

🪟 Windows Settings

Stops background capture overhead to reduce frame drops and input lag.

What changes

Disables Windows background capture and Game DVR recording behavior. Does not uninstall Xbox Game Bar or remove Windows app/protocol links.

Manual path

Settings → Gaming → Captures → Turn OFF Record in the background.

Note: Restart recommended. Fully reversible.
Game Mode can cause stutters on some systems—apply if you see irregular frame drops.

What changes

Turns off Game Mode scheduling behavior, which has been reported to cause inconsistent frame pacing on certain hardware.

Manual path

Settings → Gaming → Game Mode → Turn OFF.

Windows fullscreen optimizations can cause micro-stutters—per-game setting.

What changes

Opts a specific game executable out of Windows fullscreen overlay behavior, which can reduce input lag and stutter in some titles.

Manual path

Right-click game .exe → Properties → Compatibility → Check Disable fullscreen optimizations → Apply.

Note: Must be applied per game executable—no global Apply Fix button.
High Precision Event Timer can increase latency on modern CPUs.

What changes

Removes the platform clock override from the Windows boot configuration so the CPU timer is used directly.

Manual path

Admin cmd: bcdedit /deletevalue useplatformclock then restart.

Note: Medium risk—requires admin and restart. Test before keeping.

🎮 GPU / Graphics

HAGS can help or hurt depending on GPU—apply and retest.

What changes

Toggles HAGS on/off via registry. Windows 10 20H1+ required. Benefit depends on GPU and driver version—compare before/after.

Manual path

Settings → System → Display → Graphics → Default graphics settings → Toggle Hardware-accelerated GPU scheduling.

Note: Restart required.
Corrupted shader cache causes stutters—clear after driver updates.

What changes

Deletes NVIDIA/AMD DX shader cache folders so fresh shaders are compiled, removing hitching caused by stale or corrupt cache.

Manual path

NVIDIA Control Panel → 3D Settings → Delete shader cache, or delete %LOCALAPPDATA%\NVIDIA\DXCache.

Overlay can conflict with some titles and hurt frame pacing.

What changes

Turning off the in-game GeForce Experience overlay removes a background capture hook that can cause frame drops in some scenarios.

Manual path

GeForce Experience → Settings (gear) → General → Turn OFF In-Game Overlay.

Note: Manual only—no Apply Fix button (requires GeForce Experience app).
Outdated drivers are a common source of crashes and poor performance.

What changes

Keeps GPU drivers current with game fixes and performance patches released by NVIDIA, AMD, or Intel.

Manual path

NVIDIA: nvidia.com/drivers | AMD: amd.com/en/support | Intel: intel.com/download-center. Use DDU for a clean reinstall.

Note: Manual only—Arbiter identifies your driver version and flags known-bad versions in the report.

🔊 Audio / Latency

Audio effects increase DPC latency—common source of micro-stutters.

What changes

Disabling Windows audio processing effects reduces the load on the audio driver, lowering DPC latency spikes that can cause audio pops and frame hitches.

Manual path

Right-click sound icon → Sounds → Playback → right-click device → Properties → Enhancements → Check Disable all enhancements.

🌐 Network

Reduces network latency in online games—improves hit registration.

What changes

Sets TcpAckFrequency and TCPNoDelay registry keys for your network adapter so small packets are sent immediately rather than batched.

Manual path

regedit → HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces → find adapter with your IP → add DWORD TcpAckFrequency=1 and TCPNoDelay=1.

⚙️ Process Management

Gives the game more CPU scheduler time—helps reduce stutters from background tasks.

What changes

Raises the detected game process to High CPU priority so Windows schedules its threads more favorably over background work.

Manual path

Task Manager → right-click game process → Go to details → right-click again → Set priority → High.

Browser tabs, Discord overlay, and launchers steal CPU/GPU resources.

What changes

No automated button—Arbiter identifies the top background processes consuming resources and shows them in the report so you can close them manually.

Manual path

Close heavy browser tabs, disable Discord overlay (User Settings → Game Overlay), exit Spotify/Slack/Teams before gaming. Check Task Manager for CPU/RAM hogs.

Important: Arbiter does not silently auto-optimize in the background. ⚡ fixes have an Apply Fix button in the app and require your confirmation. 📋 fixes are manual steps shown in the app's Details panel.

Beginner Workflow (Best Results)

Use this loop to avoid guesswork and measure real improvement.

  1. Capture a baseline gameplay session (3-10 minutes).
  2. Read the top bottleneck and frame-pacing findings.
  3. Apply 1-2 relevant Quick Fixes only.
  4. Re-capture and compare before/after.
  5. Keep what helps; revert what does not.

Interactive Symptom → Fix Matrix

Pick your primary symptom to quickly see relevant, user-confirmed fixes.

Symptom Likely Cause First Fix to Try Validate With
Big FPS swings in busy scenes CPU/GPU contention, frame pacing issues Power plan + close heavy background apps 1% lows + frame-time chart
Random hitches every few seconds Capture, updates, or storage I/O contention Disable capture overhead + pause updates/downloads Disk activity + frame pacing
Mouse feels delayed DPC/ISR latency or scheduling pressure Update chipset/audio/network drivers + apply latency-oriented fixes DPC spikes + responsiveness trend
Good FPS at start, worse after 10 minutes Thermal throttling Thermal remediation steps, fan curve, airflow cleanup Clock behavior + temperature timeline
Gameplay degrades during launcher/OS activity Background CPU or disk bursts Disable nonessential startup/background services before sessions Process timeline + utilization variance

Use this as a starting point. Final decisions should be based on before/after capture comparisons and your hardware profile.

Hardware context: Arbiter recommendations use hardware profile telemetry and the motherboard component graphic to prioritize next actions per system.