SMC Reset

I play Diablo 3 on my Rmbp and when i first got it, gameplay was fantastic. After awhile the graphic seems to be getting slower and slower up until the point of which i had to reset my SMC. From then on it was good again.

Now a couple of days ago i faced a similar problem whilst playing the game, and i went ahead to reset the SMC again. Of course this would solve the problem but the question is, should i be worried about such a phenomenon? Would resetting the SMC too frequently be a bad thing on the system? Should i take it down to my local Apple support and describe the problem i am having?

Appreciate any advise.

Thanks in advance!