If those files are being re-copied every kernel upgrade, then that is probably something that should not be happening. They should only be copied on grub-install, not update-grub.
The performance problems caused by discard on a root fs probably do not apply to the ESP.
If those files are being re-copied every kernel upgrade, then that is probably something that should not be happening. They should only be copied on grub-install, not update-grub.
The performance problems caused by discard on a root fs probably do not apply to the ESP.