ARC Raiders Performance Issues: The Complete Fix Guide for FPS Drops, Stuttering, and Desync

The ARC Raiders Performance Master Guide

You're here because ARC Raiders is hitching, freezing, or just not running smooth after an update or a new GPU. I've been through every one of these problems. This isn't a collection of generic tips; it's the consolidated fix list from dealing with the actual game. We're going to fix it.

Error Code & Symptom Quick Reference

Shared Fixes & Establishing a Baseline

Do these first. They solve about 60% of general performance issues and are the foundation for further troubleshooting.

1. Nuke the Shader Caches (Fixes: General FPS Drop, Post-Patch, Post-Upgrade)

Game and GPU driver caches get invalidated by patches. Corrupted caches cause massive hitches as shaders compile live.

• Windows/DXCache: Press Win + R, type %LocalAppData% and hit Enter. Delete the DXShaderCache folder.
• NVIDIA Cache: Press Win + R, type %ProgramData%\NVIDIA Corporation and hit Enter. Delete the NV_Cache folder.
• In-Game: Launch ARC Raiders, go to Settings > Graphics. Find the option for Shader Cache or Pipeline Compilation. Set it to "On" or "Enabled" if it exists. The first launch will be slow as it rebuilds.

2. Update & Clean Install GPU Drivers (Fixes: General, Post-Upgrade, Laptop)

Use Display Driver Uninstaller (DDU). This is non-negotiable after a GPU swap or for deep-seated stutter.

1. Download the latest driver from NVIDIA or AMD's site first.
2. Download DDU.
3. Boot into Windows Safe Mode.
4. Run DDU, select your GPU vendor, and choose "Clean and restart."
5. Install the driver you downloaded. Choose "Custom Installation" and check "Perform a clean install."

3. Verify Game Files (Fixes: Post-Patch)

• Steam: Library > Right-click ARC Raiders > Properties > Installed Files > "Verify integrity of game files..."
• Epic Games Launcher: Library > Click "..." on ARC Raiders > Verify.

4. Disable Conflicting Overlays

Overlays from Discord, Xbox Game Bar, NVIDIA GeForce Experience, and RGB software (iCUE, Armoury Crate) can hook into DX12 and cause stutters. Disable them all in their respective settings. Test with them off.

Fix Network-Linked Stuttering and Desync

If you see the yellow/red network icon in-game alongside FPS drops, or experience full 3-10 second freezes followed by a speed-up, this is your section.

Primary Fix: Disable DLSS/FSR Frame Generation

Frame Generation (DLSS 3, FSR 3) is a disaster when your base framerate is unstable due to network or CPU bottlenecks. It makes the stutter feel worse.

• Go to Settings > Graphics > Upscaling.
• Set Frame Generation to OFF. Keep DLSS Super Resolution or FSR on for performance if needed, but turn FG off.

Optimize Network for Gaming

1. Enable QoS on Your Router: Log into your router (usually 192.168.1.1). Find QoS (Quality of Service) settings. Set your gaming PC's IP address to the highest priority. This fights bufferbloat.
2. Flush DNS & Renew IP (Admin Command Prompt):

    ipconfig /flushdns
    ipconfig /release
    ipconfig /renew

1. Configure Windows Firewall: Ensure ARC Raiders is allowed. Search "Windows Defender Firewall" > "Allow an app through firewall." Ensure both public and private boxes are checked for ARCClient-Win64-Shipping.exe.
2. Use a Cable: If on Wi-Fi, switch to an Ethernet cable. If you must use Wi-Fi, ensure your router's 5GHz band is clear.

Fix Post-Hardware Upgrade Stuttering

You put in a new monster GPU and now the game hitches constantly. This is almost always a software/driver state issue.

1. The Full Driver Cleanse (Mandatory)

Follow the DDU steps in the Shared Fixes section. This removes registry entries and configs for your old GPU that the new one hates.

2. Check NVIDIA Reflex Settings

Reflex can cause pacing issues if it conflicts with other limiters.

• In-game (Settings > Graphics), set NVIDIA Reflex to "On" or "On + Boost."
• Crucially: Disable any in-game VSync or FPS limiter. If you need a cap, use NVIDIA Control Panel's "Max Frame Rate" or a tool like RTSS, but not both.

3. Power Supply Reality Check

An RTX 5090 (or similar high-end card) has massive transient power spikes. If your PSU is underpowered or low quality, the system stutters as it starves for power.

• Check if your PSU meets the recommended wattage for your new GPU.
• Use two separate PCIe power cables from the PSU to the GPU, not a single daisy-chained cable.

Fix Efficiency Mode & Freezing Stutters

This is the #1 cause of random, severe freezing where frame times jump from 7ms to 40ms+. Windows is throttling the game.

1. Disable Efficiency Mode in Task Manager

1. Launch ARC Raiders, get into the game world.
2. Open Task Manager (Ctrl+Shift+Esc).
3. Go to the Details tab.
4. Find ARCClient-Win64-Shipping.exe.
5. Right-click it. If "Efficiency mode" is checked, click to uncheck it.
6. While there, right-click again, go to "Set priority" and set it to "High." (Click "Change priority" if prompted).

2. Disable Global Energy Saving Settings in Windows

1. Go to Settings > System > Power & battery.
2. For "On battery" and "Plugged in" profiles, set "Best performance."
3. Click "Screen and sleep" and set times to longer or "Never" to prevent sleep states from activating.
4. Go to Settings > System > Display > Graphics > Change default graphics settings.
5. Turn OFF both "Idle Energy Saving" and "Inactive Window Energy Saving."

Fix Laptop-Specific Low FPS

Your laptop has a discrete GPU (like an RTX 4060), but it's performing like integrated graphics.

1. Force the Game to Use the Dedicated GPU

• Windows Graphics Settings: Settings > System > Display > Graphics. Browse to add ARCClient-Win64-Shipping.exe. Set it to "High performance" (your NVIDIA/AMD GPU).
• NVIDIA Control Panel: Manage 3D settings > Program Settings > Add ARC Raiders. Set "Preferred graphics processor" to "High-performance NVIDIA processor."

2. Maximize Power & Thermal Headroom

• Power Plan: Search "Edit power plan" in Windows. Click "Change advanced power settings." Expand "Processor power management." Set "Minimum processor state" to 100% and "Maximum processor state" to 100% when plugged in.
• Laptop Vantage/Command Center: Use your manufacturer's app (e.g., Lenovo Vantage, ASUS Armoury Crate) to set a "Performance" or "Extreme Performance" mode. This opens up the TDP limits.
• Cooling: Elevate the laptop's rear. Use a cooling pad. If you're comfortable, consider repasting the CPU/GPU if it's old and overheating (thermal throttling starts at ~95°C).

Optimal ARC Raiders Graphics Configuration

Use these as a starting point for maximum smoothness. Adjust from here.

Deep Dive Diagnostics & Escalation Path

If you've done everything above and the problem is specific (e.g., only stutters in 20+ player zones), you need to identify the bottleneck.

1. Monitor Your Actual Limiter

Use MSI Afterburner with RTSS to monitor these in-game:

• GPU Usage (consistently 95%+ = GPU bound)
• CPU Usage (Per-Core) (one core at 90%+ = CPU bound)
• Frametime Graph (a flat line is smooth, spikes are hitches)
• VRAM Usage (if maxed, lower textures)
• Power Limit / Thermal Limit (shows if you're throttling)

2. The Escalation Path

Follow this order:

• Step 1: Applied all Shared Fixes, especially DDU and Shader Cache.
• Step 2: Applied fixes from your specific symptom section (Network, Upgrade, etc.).
• Step 3: Set graphics to Lowest Preset. Is the stutter gone? If yes, you are GPU bound. Raise settings slowly.
• Step 4: At Low preset, is CPU usage per-core still pegged at 90%+ with low GPU usage? You are CPU bound. Ensure Efficiency Mode is off, close background tasks, consider a CPU upgrade.
• Step 5: If stutters persist and are tied to network icons or specific zones on any preset, the issue is server/network related. Use a wired connection, contact your ISP about packet loss, or try a gaming VPN to test a different route to the game servers.

At this point, you've done everything possible on the client side. Persistent, reproducible issues may require a game patch from the developers.