so the last week or 2 now every second WU i get for my gpu is an 8018 and they SUCK! only getting 18k PPD on them with my 760! all the 7XXX WU's usually give me about 30 - 35k PPD but these 8XXX units just suck.....i check it once and im getting 50K PPD, then a few hours later im down to 29K PPD. any way to remove these? or fix these?