iPad has become very sluggish
iPad 5th Gen (wifi) has become very sluggish. Things like fetching new emails has become extremely slow. Sometimes I give up after several minutes of waiting for a webpage to open when browsing.
Rebooting the device does nothing to improve this, even temporarily. There's virtually nothing stored on the device. The battery does only last a few hours now. But, I don't want to replace the battery only to then find out that really wasn't the problem. All this sluggishnes is also there when plugged into the charger and fully charged.
Are there any steps that can be taken to try to "reinvigorate" the device? Or other steps to take to troubleshoot the cause of the issue? Or other ways to confirm it just can't be fixed and it's time to get a new one?
Thanks
iPad, iPadOS 16