I did a fresh install of Win 7 on my R6Apex,
Disabled updates
Installed .net 4 or 4.6 not sure
Installed chipset and MEI from my M9Apex
chipset ver. 10.1.1.38
MEI ver. 11.6.0.1026
Vid driver
After Burner
Catzilla working
My scores should be higher, must be some tweak I'm missing, but there you go