Sorry for the late reply, i tend to leave my tab open when i fall asleep xD
This is completely normal, you gotta realize, the recompiler is storing a block of opcodes and then batch processing them, meaning it handles multiple things at once. the Memory increase is just a general storage space for said block of opcodes. People specify a default size for it at the beginning of launching the game, if you "Redim" or resize an array during runtime, which would mean while you're playing a game, every millisecond of the game, you'd see some terrible performance.
Nice, i have a Noctua NH-D14 atm
EDIT: woops my bad, forgot that the CU 2 Cooler is a gpu cooler XD I just have the stock twin fan cooler that comes with my 760, I want to upgrade to a 970, just need to get the money lol, that or a Pascal series gpu