In Radeon Settings raise the " Power Limit Slider " to +50. If this alone does not help you may need to set a more aggressive manual fan curve that takes the fans up to 100 percent around the 65 degree point.
Give that a go and see if it helps.
Also sorry for the slow response. You would likely have gotten a response same day had this been in the right place. This should be moved to the Graphics section.
You can choose to move your post.
