Marvel RivalsStuttering from shader compilation

Fix Marvel Rivals Stuttering and Shader Hitches on PC

Marvel Rivals runs on Unreal Engine 5, and most of its stutter is shader compilation: the first time a hero, ability or material appears, the engine has to build the pipeline state object and the frame stalls while it does. Lumen and the other UE5 rendering features add further CPU and GPU cost, so background load and a saturated GPU turn a brief compile hitch into a visible freeze.

15 min

first check

blind tweaks

100%

reversible focus

Common symptoms

A hard hitch the first time each hero's ultimate or ability effect appears.
The first match after a patch or driver update stutters constantly, then improves.
Frame time spikes on the overlay while the average FPS still looks high.
Hitching gets clearly worse with Lumen global illumination and reflections enabled.

Likely causes

Unreal Engine 5 compiling shaders and pipeline state objects during gameplay.
A GPU driver update invalidating the shader cache and forcing recompilation.
Lumen, high reflection quality and super resolution settings above what the GPU sustains.
Background apps and overlays taking CPU threads the engine needs for compilation.

Safe fix order

1.Let the game finish any shader pre-compile step at startup instead of skipping straight into a match, and play a few casual games after each patch before judging.
2.Turn Lumen global illumination and reflections off or to a low preset, and use DLSS, FSR or XeSS at Quality instead of native rendering if the GPU is saturated.
3.Cap FPS a little below your realistic worst case so the GPU is not already at 100 percent when a compile stall arrives.
4.Close Discord, browser and capture overlays, disable Game Bar and background recording, and set a high-performance power plan with Game Mode on.
5.Do not clear the shader cache as routine maintenance; after a clean DDU driver install, expect one or two rebuild sessions before you measure again.

Where DRX fits

DRX Optimizer covers the Windows layer with reversible tweaks, cleanup that leaves shader caches and game data alone, per-game Game Mode, and a status recheck after reboot. It does not change Marvel Rivals graphics settings or pre-compile shaders for you.

Download DRX Optimizer

Before installing: what DRX changes on Windows · is DRX safe?

FAQ

Why does Marvel Rivals stutter even on a high-end PC?

Shader and pipeline state compilation happens on the CPU during gameplay in Unreal Engine 5, so a fast GPU does not prevent the stall. The hitches fade once each effect has been compiled and cached.

Should I clear the shader cache to fix the stutter?

No. Clearing it forces the whole set to recompile and makes the next sessions worse. Only clear it if you suspect a corrupted cache after a crash.

Are these tweaks safe with the game's anti-cheat?

DRX changes Windows settings only, does not inject into the game or modify its files, and every change can be reverted. Leave Core Isolation and VBS as they are so the anti-cheat driver keeps loading normally.