After trying 3 units from parts cars I have sitting around I pulled the one from my 5th ave cuz I knew it worked but the bracket is different, well it worked mostly... if you set it at 65 it slowly slows down to 60 and holds it there. Can I adjust one of those screws to get it to hold a little quicker?

I am not causing global warming, I am just trying to hold off a impending Ice Age!