I’m experiencing severe FPS drops in DayZ when moving the mouse or changing the camera direction. The game maintains a stable ~250 FPS when looking in one direction, but the moment I start moving the mouse to look around (especially in dense areas or cities), the FPS drops instantly down to 70 or even lower, with visible stuttering.
This issue happens consistently, even on low/medium settings, and only when moving the camera — not while standing still or walking in a straight line.
System Specs:
CPU: Intel Core i5-12400F (6 cores, 12 threads)
GPU: NVIDIA RTX 3070 Ti (8GB VRAM)
RAM: 16 GB DDR4
Storage: SSD (C: drive)
Mouse: Logitech Pro X Superlight (Polling Rate: 1000Hz → tested 500Hz as well)
Settings Tested:
mouseSmoothing=0;
rawInput=1;
sceneComplexity=100000;
preferredObjectViewDistance=800;
VSync: Off
Low Latency Mode: Ultra
Shader Cache: On
Also tested multiple polling rates (500Hz, 800Hz, 1000Hz) with no major difference. Windows "Enhance pointer precision" is disabled. No background apps interfering.
Steps to Reproduce:
- Launch the game and join any server (tested on both modded and vanilla).
- Stay still and look in one direction — stable 250 FPS.
- Move the mouse to turn the camera — FPS drops to 70 instantly.
- After stopping camera movement, FPS returns to 250.
Expected Result: FPS should remain relatively stable when rotating the camera or moving the mouse, especially on high-end hardware.
Actual Result: Massive FPS drop and stuttering only during mouse movement / camera rotation.