Fujifilm X-T3 Autofocus Tracking

Hi everyone,

I'm strongly considering picking up an X-T3 for both photo and video. The one hangup I have is it's autofocus tracking ability in low light. I shoot a lot of concert photography, typically in dark bars. My current camera, a Canon 6D, does a decent job in tracking focus when using the center point and I'm hoping the X-T3 would give me similar performance or better with the right lenses. These are typically what the images look like:

IMAGE LINK: https://flic.kr/p/2hTH​q7A IMG_6024 by Scott Carr, on Flickr

IMAGE LINK: https://flic.kr/p/2i3Y​6Ya IMG_7257 by Scott Carr, on Flickr

IMAGE LINK: https://flic.kr/p/2jto​AtX IMG_3538 by Scott Carr, on Flickr

I understand these are pretty demanding situations for focus tracking for any camera. I briefly owned the X-Pro2 and shot two bands on it in different situations as well as a wedding and it didn't preform as well as my 6D would have. I know the X-T3 has a better focus system, but would it be comparable or better than a DSLR in this situation? I'm not asking for eye or face tracking, but just good tracking of the subject.

I know this is pretty lens dependent so I'm currently looking at the f2 primes as they focus more quickly than the f1.4/f1.2 lenses as well as the Viltrox 85mm (the Fujifilm 90mm is a little out of my price range)

I really want this camera, but I want to make sure it can preform in these situations before dropping this amount of money on a new system. Thanks everyone!