#4 is where I was looking to go with my thread here here
I have this open MR for generating more detailed metrics in the plot check which might have helped you Add timing metrics to plot check by aarcro · Pull Request #5109 · Chia-Network/chia-blockchain · GitHub
Looks like this is merged to chiapos master, but they haven’t had a release since 1.0.2 2 weeks ago. I hope it’s safe to run master 
I’ll be trying that ASAP.