I've heard you can run into issues with FX processors in the mid 60s, so I think you are probably running a bit warmer than you should be.
You said the CPU cooler is older, are you sure it is up to the task of handling a 95-125W processor? Doesn't sound like it is.
Yeah, I am looking into taking this fan off and putting on the stock one but can't find anywhere on if the stock will be any better. Not sure if it's worth risking my CPU to make the change.