ConEmu glitches out for me on tmux. Hyper can be a bit slow, but is most accurate for me.
I'm doing tmux + vim with 256 colors. So a lot of stuff has to come together and "just work"
Windows Terminal over the past months fixed glitches. It's update-able via Windows Store.
Oh, and the font "Cascadia Code" is one of my favorites. Very clean. Actually, I'm using it on Linux now in my terminal [1].
The other thing is Windows Terminal works great on a huge monitor, too. No lag when rendering. Feels lite. I compare its snappiness to rxvt-unicode. Faster than iTerm2.
Just my perception, never benchmarked.
And this goes along with WSL 2, which is worth reinstalling Win 10 for if you left because of WSL 1 problems. This stuff is fast. I can throw multiple multiple beefy node projects, python flask/django apps, building C++ projects, importing postgres DB (4gB import with a lot of indexes), all at the same time.
[1] I dual boot still. There is a shortcut on Windows 10 minimizes all windows that I can't disable easily. It loses my workspace positioning and isn't recoverable. I hope this gets changed - it'd be a dream.