iPad Pro, Pencil Pro, and Issues in the Freeform App

I’m using an iPad Pro with Apple Pencil Pro.

The software is the latest updated.

However, on the Freeform app, the Apple Pencil seems very jittery, sometimes missing bits when drawing, and even cutting out.

Palm Rejection does not seem to be working either; as I place my hand on the screen with Freeform open, the screen jumps, zooms in or out, or selects an option that I hadn’t chosen.

In Settings, Zoom is not enabled.

No such issue in Apple Notes and Goodnotes.

I’ve rebooted many times but the issue remains.

Is anyone else have this issue?

Is there a solution for it?