Thanks for the tip. Got it. I will try both the kernel and the animation scale trick to see if that helps.Yes his kernel and Franco kernel manager. After your post I checked to see if it was happening to mine and I just wasn't noticing. After looking explicitly for what you mentioned, I did notice a bit of a lag right when I enabled it for about 15 secs, but then it subsidies. In Dev options try turning window and transition animation scale to 0 and setting duration to 1x.. That seemed to nullify any lag in the ui after nightlight
After seeing your post, I just checked and mine passes safety net check on latest Magisk 15.3.After a clean install, my Magisk is not passing the test.