Is this too hot?

Hey guys, recently bought some Arctic Silver 5 for my CPU. I applied using the rice/pea method. My CPU idles at around 30-35 degrees and under prime95 load it reached 67 degrees. The ambient temperature is around 20-25 degrees. I only applied it today so does it need time to settle/burn in? If so, how long? Thanks
 
If you are running the latest Prime 95 (with AVX) on small FFT's, then your load temps are great. AVX will push the temps more than any other instructions. I am assuming the system in your signature is the one you are inquiring about.

Most newer pastes don't really have a cure time, however AS5 is one that does according to AS documentation. However in my experience AS5 cooling performance doesn't really change much after an initial burn in period of 24 hours.