This is strange, there is nothing in 4.43 that will slow it down comparing to 4.42 It is the other way around, there is sim engine setting that will make the FPS higher for some hi-poly models. Are you sure all else is equal on your computer? (new drivers, background programs, viruses god forbid ???) Also, did you do clean install by making sure c:\Program Files\SVKSystemsclearview is deleted