performance setting ???

[va3rwt]

performance setting in reason what exactly is default is it using all the cores or none.
I have always being lucky with Reason I have great performance with large projects
though I don't run plugins just rack extensions, but that just me.
just want to better understand this setting and would it be better
if I choose all cores

[jam-s]

The default should be OK. It's better not to use the virtual hyper-threading cores or the low performance cores in mac M1 or M2 chips.

[va3rwt]

just a PC i9-9900 Processor