How to Fix Low FPS Issues in Grounded 2

Low FPS issue in Grounded 2 has become a widespread complaint among players, even on high-end PCs and consoles. Whether you’re experiencing stuttering, drops during combat, or low frame counts in visually simple areas, gameplay can feel unplayable. 

This guide dives into the real causes and delivers effective solutions to boost FPS and keep you immersed. You’ll learn to tweak in-game settings, override Unreal Engine features, update drivers, and optimize hardware and software, all proven fixes backed by real player data. Without further ado, let’s jump into the solutions.

Step-by-step Methods to Fix Low FPS Issues in Grounded 2

1. Lower resolution and render scale to reduce GPU load

Many report that Low FPS in Grounded 2 happens even at low settings because the game renders at full resolution by default. Reducing render scale or resolution can dramatically improve stability without sacrificing clarity.

• Set resolution to 1080p (or 70–75% render scale)
• Apply the lowest graphic preset (Low or Medium)
• Turn off dynamic resolution and lower render scale
• Relaunch the game to test frame rate improvements.

2. Disable Lumen in Engine.ini to bypass heavy lighting effects

Unreal Engine’s Lumen lighting system is a major factor in causing low FPS issues in Grounded 2, especially in open-world environments. Disabling it via config can give huge FPS gains.

• Locate %LocalAppData%\Augusta\Saved\Config\Windows
• Create or edit Engine.ini with the following:
  
  [/Script/Engine.RendererSettings]  

r.Lumen.DiffuseIndirect.Allow=0  

r.FilmGrain=0  

• Save file and set as read-only to prevent overwrites
• Restart the game and monitor FPS gains.

3. Reduce shadow quality and turn off reflective effects

Grounded 2 players also report that FPS is significantly lowered by Epic shadow and lightning settings. Even in smaller scenes, reflections and high shadow detail cause drops.

• Reduce shadow quality from Epic to High or Medium in config.
• Disable reflections and ambient occlusion via GameUserSettings.ini
• If possible, remove dynamic light sources in your base
• Relaunch to observe improved stability

4. Make sure your GPU drivers are fully up to date

Old or mismatched GPU drivers often cause frame drops and stutters in Grounded 2. A clean driver installation can resolve underlying rendering glitches.

• Visit NVIDIA’s or AMD’s official website
• Download the newest Game Ready or WHQL-certified driver
• Perform a clean install (clean install option enabled)
• Restart your PC and retest the game

5. Close background apps and enable Game Mode on Windows

Background tools can consume CPU/GPU cycles, resulting in inexplicable drops even with Grounded 2 Low FPS. Windows Game Mode helps reduce that interference.

• Exit heavy programs (Chrome, Discord, etc.)
• Open Task Manager (Ctrl+Shift+Esc) and end unnecessary tasks
• Go to Settings → Gaming → Enable Game Mode
• Relaunch the game under Game Mode enabled

6. Switch power settings to High Performance and check for thermal throttling

If your system auto-throttles due to power or heat, low FPS in Grounded 2 becomes unavoidable. High Performance mode prevents downclocking during gameplay.

• Open Power Options in Control Panel
• Set your plan to “High Performance” or “Ultimate Performance”
• Use tools like MSI Afterburner to monitor CPU/GPU temps (keep under ~85 °C)
• Remove any active overclocking or revert to safe voltages
  

7. Verify game files and confirm both game and OS are updated

Unoptimized or corrupted files, even small ones, can introduce FPS glitches in Grounded 2. Matching game versions across players is also vital in multiplayer situations.

• On Steam: Right-click Grounded 2 > Properties > Local Files > Verify Integrity
• On Xbox / Game Pass: Manage > Repair or Apply Updates
• Install Windows updates for best compatibility
• Restart the system and relaunch the game

For multiplayer join failures and Shared World errors after performance tweaks, read our full guide on Grounded 2 shared world not working to restore co-op access quickly.

Causes of low FPS in Grounded 2

• Unreal Engine optimization gaps in early access and a lack of DLSS/FSR upscaling.
• Overly demanding lighting via Lumen causes drastic drops in outdoor or open areas.
• Epic shadow quality, especially around lights and reflective surfaces, drops FPS by up to 30–40.
• Outdated or missing GPU drivers and Windows patches lead to frame stutter and dips
• Background software interference or power-plan throttling reduces performance unexpectedly
• Game files or OS versions mismatched across devices can cause inconsistent rendering behavior

Conclusion

Low FPS in Grounded 2 results from Unreal Engine demands and a lack of built-in upscaling. By lowering resolution, disabling Lumen, trimming shadows, updating drivers, and optimizing your system, you can regain playable frame rates fast. We also have a guide for those facing crashing issues while launching Grounded 2. 

If you stick with the aforementioned issues, you’ll likely resolve the Grounded 2 Low FPS issue on your own. If performance remains poor, drop your comments, and we’ll try to provide relatable solutions in the comments below. Moreover, you can also check our guide to fix multiplayer not working in Grounded 2.

FAQs

Q1. Why do I get ~30 fps outside when inside zones run at 60–100 fps?
Unreal Engine Lumen lighting is heavily taxed outdoors, particularly around dynamic shadows or foliage. Even high-end GPUs take a hit. Disabling Lumen via edit fixes this, in enclosed areas, FPS leaps back up. 

Q2. Will editing Engine.ini really improve performance?
Yes, users report improvements from 30fps to over 60fps just by adding a few lines to disable Lumen and film grain. This bypasses heavy GPU-bound lighting in Unreal 5. 

Q3. Why do shadows tank FPS so much?
Epic shadow settings include full dynamic lighting and detailed reflections. In elaborately lit bases or sunlight-heavy zones, the GPU struggles, cutting FPS dramatically with no optimization path. 

Q4. Could poor internet cause low FPS?
Not directly, Grounded 2 is offline-heavy. But high ping or uploads in the background can indirectly affect performance via CPU/GPU contention. The main issue is rendering, not network latency.

Q5. Should I wait for optimization patches instead of tweaking manually?
Early access will get improvements, but current fixes like Engine.ini edits, render scale adjustments, and driver installs offer immediate relief. It’s a faster route than waiting for standardized updates.

Q6. Does this affect all platforms equally?
Yes, PC builds lack DLSS/FSR, causing frame drops even on high-end GPUs. Xbox consoles also struggle with resolution scaling. Performance varies, but all benefit from similar adjustments.