nah not problems, I heard the card get a little hotter with the omega drivers but I didnt notice it with mine, actually I don't even see the difference between omega and official drivers other than not needing the acc on the official drivers.
As to the topic, sorry can't help you there buddy, also the game crashed on me sometimes, I noticed my gpu had 103 temperature o_o, that was the problem(Beyond Divinity had the same prolem with crashing at 90 for some reason, I tough it was SF until I realized it was overheating probs . fixed it by opening case and puting a fan next to it, most games don't go past 67 now.