Hi
This is usually caused by a screen that hasn’t been designed with Apple Pencil use in mind
If you look for a supply that mentions it in the listing or ask about
Most reputable suppliers have this sort of issue in mind
Appart from that all you can really do is check the pencil isn’t the issue
I would see if the issue continues on a iPad the a original screen unless it worked before hand
Hopefully this answers your question
If you have any more questions please ask
Thanks:-)