Threshold I can change no problem (in Trickster and sTweaks both)
View attachment 2151687
About benchmark scores and temperatures, the main problem is that GPU overclocking quickly causes triggering thermal protection. I heavily undervolted GPU (I'm lucky in a way that I have some good silicon in there) and I can force it to work stably @ 640, I mean minimum frequency and maximum frequency set to 640. I tried 733 but @1.050V it still would not stay that way and fall back to 533 and even 440 sometimes when CPU was also being used. I think that there are 2 main problems: overheating for one and power distribution - my guess is there are limits to what battery can safely provide for cpu/gpu/screen and when needed gpu and cpu is downclocked.
When my phone is awaken from some time of deep sleep, I can get much higher scores in benchmarks, especially gpu ones. My record benchmarks were just over 20030 in Antutu, 7367 in Quadrant, 4616 in 3DMark and 2314 in Geekbench but those were on some other kernel that allowed OC of 1920 (2000 was never good because cpu would downclock from heat).