you can try editing your config with some of the options here https://github.com/RehabMan/OS-X-Clover-Laptop-Config/blob/master/config_HD5300_5500_6000.plist
The KP is graphics related
looks like latest bios is newer then yours http://support.lenovo.com/us/en/products/laptops-and-netbooks/lenovo-g-series-laptops/g50-80/downloads/DS102231
there used to be a voodootscsync kext for AMD that had a faster sync rate then the normal voodootsc kext but i think it was on projectosx site. you can try messing with clock/buss speed like herve implies also in clover gui so that it is not permanent untill you get it to sync.
you have to make sure you removed the old PS2 kext from every location including /Library/Extensions, /System/Library/Extensions, /Extra, Clover/kexts/10.12 and other then boot without caches.
there are alot of variations for that model http://h20564.www2.hp.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c02822281#N10013we need to know what hardware YOU have.