it is good to see that the problem is not only with Logic.
To avoid this I have been using IAC to send the Midi to VEP.
The audio is sent back the VEP AU
I have noticed improvement with Event input since last VI upgrade of Friday, but there are still a few hanging notes.
Try IAC and tell us if it is working better
MacBook Pro M3 MAX 128 GB 8TB - 2 x 48" screen --- Logic Pro --- Mir Pro 3D --- Most of the VI libs, a few Synch... libs --- Quite a few Kontakt libs --- CS80 fanatic