I hear many people complaints and it seems i'm one of the few where the game runs smooth* both on old computer and new computer:
1:GTX580/1090T/8GB
2:GTX970/i5 4460/12GB
*Menu fps is garden, and do have to restart every 3-4 games. But this does not really affect the ingame play for me.
This is on highest settings. But if so many people do have a issue Relic should fix it, but then Kyle already said there will never be a optimization patch