Patch 4 Changelog:
-Replay character jitter is gone.
-Ragdoll muscle usage upgrade, and early version of bail staggering added.
-Engine physics upgraded.
-Physics quality setting added (should only be lowered if fps is still an issue after low video settings).
-Free drop Spawn Point added. Hold Set Spawn button to set your spawn freely near you.

-Board feel adjustments
-Camera 1 jitter fix
-Various Camera 1 collision fixes
-Less foot jitter
-Various map fixes

Great progress in the functionality brought new issues.
Most will be fixed in a following hotfix.

Patch 4 · Newbie: Become a Skateboarder patch notes · SteamPeaks