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Two possibilities to try:

1) A forced-restart of your iPad often resolves an isolated issue:

• On an iPad with a Home button: Press and hold the top button and the Home button at the same time. When the Apple logo appears, release both buttons.
• On an iPad with Face ID: Press and quickly release the volume up button, press and quickly release the volume down button, then press and hold the top button. When the Apple logo appears, release the button.

2) Try updating your iPad to iPadOS 13.7 - this being the current version of iPadOS.

Settings > General > Software Update

This may be the setting that your looking for:

Settings > Accessibility > Motion > Limit Frame Rate - set to ON