Hello

I have had my iPad for 2 weeks now, actually tomorrow is the 2week mark. I absolutely love it! And am learning something new each day. BUT,,,, Anytime I try to play a video it is very s l o w and choppy. Is there a way to fix this? I use my cell phone as my hot spot, if that is important. Also, yesterday it froze up on me when I was trying to use the photo slideshow. For several mins it wouldn't do anything no matter what I did. Then all of a sudden it rebooted. It really scared me, I thought it was broken

Any help or tips will be appreciated!

Mary J