Rendering settings are more optimized
CPU usage is lowered
Improved level shadows
Improved character shadows
Fixed performance bug in Parking Garage level
Pixel Density is not saved anymore, because on some systems it causes crashes if set too high. And with saving and loading it crashed as soon as game was started. So now you have to set it again every time you run the game. But if you set it too high and crash then it will be 100% again when restaring the game.
Update v0.72
Source: Steam Community (opens in a new tab)