Optimized the game a bunch, with one compromise as a result.
- Reduced max particles on non-Low GPU Mode
- Reduced linear color buffers from 64 to 32 bit
- Made sure MSAA is disabled by default
- Removed distortion pass from enemies (only with MSAA and 64bit buffers)
The distortion pass may come back at a later date, but console versions already don't have it due to performance. The overall performance improvement (2-3x in some cases) seems more important.