SnakePL

This can be replicated in the "instant action" BVR 8v8 mission. SA page 160nm range on the left, Radar page 160nm range on the right, D/L ON. I'm looking at 40+ FPS drop in this configuration along with stuttering.

I just found this thread, I have the same issue like you. I updated to 3.8beta firmware and that got rid of the drift, but the weird jumps remain. Have to talk to the edtracker support again. I have mine mounted on a hat so there should be no interference that's causing this.