iPad is running glitchy
Why is my iPad not running very smooth? It runs slowly, doesn't respond quickly, and is just not working well in general with lag times.
iPad, iOS 9.3.5
Try these standard troubleshooting steps.
Reset: hold down the Home and Power buttons until you see the Apple logo (10-15 seconds).
If this doesn't help, you might need to Restore your iPhone: https://support.apple.com/en-us/HT204184
If your backup is to iTunes, make sure it's an encrypted backup.
Also check in Settings if you have enough free storage space.