Motion profile for KartKraft tuned utilizing game telemetry (captured in SRS) from the X30 and KZ2 karts across multiple tracks.
The telemetry from KartKraft is not the best, and does have some quirks, such as an odd 'pulsing' when you pause the game - SRS are working on a fix for this at the time of this posting.
You may also need to increase your 'Spike Filter' parameters as I found that even normal driving would cause the AMC controller to pause motion.
Try drive around a bit, forcing higher telemetry values by jumping the kart, hitting bumps/walls etc to find the value that works best for your setup.*
You will be able to see when the AMC controller spike filter activates as the LCD display will change for a few seconds, which will coincide with major reduction in motion activity.