great suggestion. I did goto balanced mode and hash rate isnt much less. I also did a full reboot. At the moment these are my current stats.

Apollo2 Full Node, plus 1 standard, Antminer S9
One Hour Average Hash Rate: 30.50TH
Accepted Shares: 10,572,333,916
Best Share: 5,908,386,730 (been the same for close to 15 days)