Right rather a strange 1 but i was wondering if any is running 1 of stus uprated fan swith on a standard rad???

Ive just ditched my ally rad n gone back to a standard rad with a standard fan switch,

Problem is im struggling with temps but not in the normal way, my fans are now cutting in at 85c n not cutting out till 75c,

now in my opinion this is a little to low!!! i would much rather the fans cut in about 90ish but cut back out about 79ish,

I have a uprated fan switch sitting in my tool, box that used to be in my ally rad, i was wondering if this would solve my issues or would this raise the bar to much n the chance of the fans cutting to Late?

Cheers jay?