CONTROL Resonant Ray Tracing FPS Drop: Patch Status and Restart Check
Separate the older FPS-drop workaround from the RT-switch crash fixed in 1.4.0.
Quick answer
The launch list describes a severe FPS drop after changing RT quality and recommends a full restart, preserving the setting. 1.4.0 separately fixes an RT-switch crash. Its notes do not explicitly name the old FPS-drop symptom as fixed.
On this page
Match the symptom
Record whether the setting change causes a crash or leaves the game running slowly. A heavier RT preset also costs rendering time even when no bug occurs.
For the older running-but-slow symptom
The launch support note recommends quitting fully and relaunching. Check the same scene and saved setting afterward. Treat this as symptom-specific historical advice, not a requirement after every graphics change.
What 1.4.0 confirms
The update names the RT-switch crash and PC performance work. Update before diagnosing a current crash. It does not promise that all slowdowns are resolved.
For feature support and a controlled comparison routine, see PC graphics and path tracing.
If it persists on your build
Capture game build, GPU/driver, old/new RT setting, scene and FPS before/after restarting. Send that comparison to support. See patch effects on existing guides.