Why is my Samsung Galaxy Tab A so slow?

[AC Question]

It can take two or more minutes for some sites I search to open. Ad many will return an error message that states the website is not available, but I believe it just times out. If I reboot and clean cache, I get a better response for a few minutes, then it reverts back to sllllllllloooooooooowwwwwwwwwwww processing. I do not download movies or music, but did download one game for my grandson and one game for my dad, solitare. Thank you for any help you can provide.