I am experiencing the same issue with my 2020 E-Pace SE. Its worse from a "roll" or coast. Taking it for service in August. The display also has issues where it just doesn't come on.
I have had this in for service now several times for the throttle delay. They refuse to admit there is a problem and keep telling me that if they can't replicate the problem then they won't do anything. I opened a claim with Jaguar Corporate and they are backing the retailer. Its like they don't believe me. They won't admit that it is a known problem even tho it clearly is according to us here.Good luck,keep us posted.