Betta Fish: Is he breathing normally?

I posted earlier about him not breathing normally and wondering if it was in relation to there being a bit of ammonia in the water but I didn't add a video. This is a video I took a little while after I posted that and his breathing seems to have gotten better so I assume it might have had something to do with stress as I has slid the tank across my desk a bit to make room which scared him and shook the water up. The breathing does seem normal for most of the video but at the end you can see it seems to be slightly faster and more frequent than it normally is. He did seem worse before and was laying close to the bottom of the tank but would shoot back up whenever he saw me which seems good. Would he just be resting?

Also ignore how fat he looks right now, I fed him extra food so he wouldn't bother the shrimp