This isnt new info but I think it may be usefull to restate it.
Befor you render reset your PC, unless it has very recently been turned on.
I am in the habit of leaving my pc on 24/7 and only reset when things get clunky. For boring resons I have had to rerender the same rdit many times over the last few days and the difference in times between reset and not are huge.
Longest - 1 hour
Shortest after reset - 10 MINS