Or just set up one computer for Reason and one for Logic and connect them via an audio interface like I do
Computers are not really made for doing all the audio stuff we want from them at once. You can basically either play instruments effectively or do lots of processing. Not really both at once. So in most studios you see separate computers for stuff. I often saw one full PC for one single Native Instruments virtual instrument already ^^ And not like old ones, I saw some with SSDs and whatnot.