RPMs rev very freely when it's hot outside

[WolfDampf]

I always thought I needed a lightweight flywheel to shift quicker and for my RPMs to move freely. But I realized that whenever it's hot outside I can shift 1st-2nd immediately as the RPMs just tank vs when it's 80 degrees or below they take 2 seconds to drop before I can shift to 2nd

 

[Grsemky]

Here in Arizona where is nearly always 80, I feel the revs are too slow... Though I love the dual mass while going through the mountains, not nearly as much slowing. I still think I'm going to switch to a single mass when the clutch goes