Ok:
TexCompress=2
TexFlags.TexCompressARBExt=1
Black Death frame rate still stuck on 35. Fer f***s sake!

I still don't like the way texture compression looks, BUT it does let me open Cannon's big Channel map, as has always been the case for me.
So, this is what my benchmarking has learned me:1. Make sure you're installed to the latest level of C.U.P.--lots of bugs have been squashed along the way.
2. If you
are suffering low frame rates, try turning off flybys for a handy boost:
[Mods]
RandomSplash=1
netCallsign=
ToggleMusic=1
Flyby=0FlybyFov=60.0
3. If you can't open the big, heavy maps, try texture compression:
[Render_OpenGL]
TexCompress=2
TexFlags.TexCompressARBExt=14. C.U.P. is slower than stock, and slower too than modact (as delivered out the box) bearing in mind that an un-modded modact is virtually stock except for instant logging. Why C.U.P. should be slower in the case of Black Death (a stock ntrk)--I surely don't know.
5. Instant logging,
in itself, doesn't cost FPS, but it does if it's writing big logfiles. If it's writing big logfiles, instant logging is your least problem!
6. If you got some buck$, get yourself a faster CPU, it's probably your best bet. See here:
https://www.sas1946.com/main/index.php/topic,48558.msg531488.html#msg5314887. Don't worry, be happy. Even if your Black Death runs aren't setting the world on fire, if you write yourself some sensible missions on sensible maps, your FPS will be pretty good. (That's what I'm gonna go do now.)

All of these things have been said before, but benchmarking appears to confirm it.
