Customize Armored Core parts to suit a large variety of playstyles. Selecting different parts not only changes the mech’s attacks, but also directly affects its movement and battle style, so each mission can be approached with a unique mech strategy. ...
The problem is that Refractor 2 engine is old and not optimized by default for multi-core support. Whenever you have this problem with your computer, just don't use this option at all. You can hide «Recommended» notification by clicking on the small «X» button on its right side...