Midi Controller 'lag'

Hello all,
I’m experiencing a input lag when using my Korg Pad Control with Groove Agent.
This renders GA4 unusable for recording input or ‘playing’ the unit while in record.

I do not have this lag with any other VSTi, nor do I have it when I’m using the controller to play Ableton instruments while rewired as Nuendo slave.

Any thoughts?

In Cubase 9 I have to record with constrain delay compensation on. Otherwise my recorded midi ends up early. Not sure if that will solve your issue or not.