While this usually does not cause a stuck-at-60Hz problem, it can add red spikes at www.testufo.com/animation-time-graph that corresponds to TestUFO stutters.
Exit/uninstall inefficient background RGB software (e.g. Aorus Gigabyte's 2023-era RGB software added stutters to games, newer might be better). Switching to different RGB software such as OpenRGB may or may not help.
Also, CPU monitoring software like Task Manager can add stutters to TestUFO. Exit Task Manager to avoid stutters.
- Exit Task Manager
- Exit RGB controller software
- Close all applications & browser tabs to reduce CPU/GPU performance noise that jitters this.
- If you see red spikes once a second, CPU/GPU monitoring software might be intermittently siezing your CPU/GPU.
- If you see red spikes everytime you move mouse or bang keys on keyboard, RGB animating software might be consuming too much CPU/GPU cycles.

