@SixZer0Sevenyes, if you want to replicate the same onto a 4c/8t cpu. but the game recognizes threads, not physical cores, see ...screeninfo 1: it says cores, but these are threads. 8 threads -1 seems to stabilize fps fluctuations on 8c/16t cpus, but on 4c/8t the 8 threads are fully used by default already, and lowering them doesnt do anything (up to 4-3, when it gets to stutter even worse, logically), or worsens performance. thread.processorcount 6 and thread.maxprocessorcount 7 works equally on 4c/8t cpus, since these are threads, and 4c/8t or 8c/8t cpus have 8 threads anyway.
btw. you can also set thread.minfreeprocessorcount to -1 (= maxprocessorcount -1) or lower (important is the minus, this is counter-intuitive vs. what the command name suggests) to have 7 or less worker threads assigned. though, having 1-2 less threads assigned than physically available may still max out all threads, only 3+ less really offloads the last 1-3 threads, this is weird, and another hint that the engine somehow handles threads badly by altering threads resp. using more than are assigned.
still no fps boost in my testing, unfortunately :/