Going from a light/short bike to a long/heavy machine has definitely messed with me. I'm getting used to them more now, and it seems like they will be quite a bit faster, but the learning curve is scary and steep.... at least for someone like me with no dirt or big bike experience.
Here's a fun vid of a 2019 BUBs record return pass on a really heavy nekkid bike... watch it on high quality and just look at the track in places. Camera had the gimbal stabilization on, and it still looked like a wild ride.