Personally, I think that it is a good benefits to use Process Lasso to tune CPU/Process usage. especially for Intel 12th+ gen family. SP has his YouTube video for how he gets this environment improvement with DCS "2.9" at:
With Process Lasso, we can make CPU affinity with all P-Cores for dcs.exe so that DCS multi-threading can leverage the heavy process cores to generate a better FPS.
I had done the testing on my Intel 13th gen CPU with Process Lasso at:
Because of Windows Power management, Windows kernel may not schedule all available CPUs for DCS when DCS needs more CPU resources to compute the objects and FPS (likes F10 map and others). So Process Lasso can take care for us, if we do not have time to manage CPU/process.
A good Process Lasso setup will make DCS runs smoothly in MT, otherwise it becomes totally chaos since DCS 2.9+ (I guess for troubleshooting and ED wants to know we run Process Lasso runs in background or not).