Considering upgrading from an iPad Air 2 to an 8th Gen iPad

[GAMESHARQ]

My iPad Air 2 is very slow with things like loading web pages. Would the upgraded processor in the 8th Gen iPad help with this?

 

[BikeFlagAZ]

My iPad Air 2 is still very usable. I still use it for intensive tasks such as editing video. Maybe you are out of memory?
Go to Settings > General >IPad Storage and see if you are out of free memory. If so, get rid of some junk.

As a last resort, I would try a full reset and see what happens.
Settings > General > Reset > Rest all content and settings