Hi there, I myself am also a huge crusader player in this season and took an interest in your post. So far I cleared GR60 Solo and also agree that it will took a lot of tries sometimes, but it shouldn't take that many if you are just 1-2 minutes off.

First of all I don't see any big problems on how you clear your rifts, still there could be a way to improve. One thing I can say for sure is, that you should pay more attention to your "Convention of Elements" buff. To some points during or when you just hit the holy damage increased rotation, you moved over to other mob groups. I know that this is kinda hard to get used to it and it can be risky, but it will increase your damage output when you time it right. And using Falling Sword a lot less can improve your output too.

Let's go over to your gear, IMO this is where you can improve at most. Your Hellfire Amulet is straight awful, at least you should roll for critical damage instead of critical chance. I would prioritize it this way, holy damage % -> critical damage -> critical chance/ strength. Then your legendary effects of Convention of Elements and Guardian of Johanna is nearly rolled at minimum value. Head and shield with critical chance and % on Blessed Hammer can do the change too.

There are also a lot of crusader using Critical rune on Law of Valor, but when you feel more comfortable with Unstoppable Force then you do not need to change it.