So, I noticed today that I get like 210 fps on a totally empty DM6, but more like 170 or less once some players join. Even if I add a few bots, as soon as I can see them, the FPS tanks. I was messing around with a test config last night, playing with lighting and such, but I deleted it,. When I got the problem I assumed some setting had been changed, since I don't really have defaults in my cfg, so execing it wouldn't restore everything. So...I removed my cfg, deleted repcofig...etc...you know the score.
Oh, and my steam cloud is not active, and hasn't been for ages.
So, I can be pretty sure I have all my settings back.
I also cleaned out my heatsinks, benchmarked my GPU and CPU and both are working as normal, scanned my system for malware, viruses and annoying memes, can't see any weird processes that weren't running yesterday.
Oh, and camperstrike runs at around 200fps, same as always. I haven't changed any settings in my gfx driver software or anywhere else for that matter.
It's driving me nuts. The fact that everything works okay except Quake makes me think it's my config. The fact that it's the same config as yesterday, makes me think it's not.

Here's the chunk of my config with most of the relevant stuff in:
seta r_mode "23"
seta r_gamma "0.86"
seta r_picmip "8"
seta r_fastsky "1"
seta r_lodBias "-2"
seta r_fullscreen "1"
seta r_vertexlight "1"
seta r_lightmap "0"
seta r_texturemode "GL_NEAREST_MIPMAP_NEAREST"
seta r_enableBloom "0"
seta r_texturebits "32"
seta r_colorbits "32"
seta r_ambientScale "10"
seta r_dynamiclight "0"
seta r_windowedMode "23"
seta r_overBrightBits "1"
seta r_teleporterFlash "0"
seta r_mapOverBrightCap "255"
seta r_mapOverBrightBits "2"
seta r_enablePostProcess "0"
seta r_enableColorCorrect "0"
seta r_ext_compressed_textures "1"
seta r_displayrefresh "144"

Idlesleep is off