Chosen Solution
I just replaced the screen and digitizer on my iPhone SE with an iFixit replacement kit. Everything went smoothly and the screen works. However, the touch seems a bit slow and lagging at times. Sometimes it seems I have to tap something a couple times for it to recognize it. I don’t have any ghost touches anymore, which is what used to happen. Now, it is just a little slow to the touch. Is this a known issue? Does this have to do with an aftermarket product? Could it be something with my install? Thank you.
If the original screen was “only cracked” and otherwise worked well, I would suggest you re-install it to see if the lagginess persists or not. You may have a defective replacement part and that would be the best way to determine it. If you deem the replacement part defective, contact iFixit Support (help.ifixit.com)
