Yeah, you could try to push it a little further. Just keep the vcore as low as poasible. Vcore adds 10x more heat than actual speed does. Actually, some people disable ht and some dont, depends on what you are doing. Ht will help alot for all the multi thread apps, but not so much for games, as games do not run on 8 threads.
You really dont want your temps much higher than they are now, so if you decide to continue, keep them down below 80c.