Cyberslayers uses RPGM, not RenPy.
So whatever is causing those glitches doesn't seem to be engine specific.
Which in turn makes it hard to help you pinpoint the problem.
It might be a GPU driver issue, it might be a system/OS problem (maybe Windows Font Cache?), it might even be faulty RAM, a faulty mainboard and/or GPU hardware failure.
Here are some things you might want to try:
First, check that you use a
"proper" resolution for your monitor (so unless it's widescreen:
1080p, 1440p or 2160p/4K).
Second, try to stick to
fixed scaling (100%, 125%, 150%), no custom scaling.
Downgrade NVidia driver to 566.45 (last stable driver):
- Uninstall the NVidia App
- Run DDU in Windows Safe Mode:
You must be registered to see the links
- Install 566.45:
You must be registered to see the links
(from there you can choose to d/l from Nvidia directly)
Check/Fix Windows:
Open an Admin CMD and run
dism /online /cleanup-image /restorehealth followed by
sfc /scannow .
Repair Windows Font Cache:
You must be registered to see the links
RAM check:
You must be registered to see the links
(use 1usmus v3 config with at least 25 cycles)
VRAM check:
You must be registered to see the links
(choose the VRAM test)