Kodi on firestick is going REALLY SLOW

so I own a fire stick with kodi on it and it works perfectly fine like normal but today I bought a second one and installed kodi on it to for my master bed room tv but on this one kodi is running ridiculously slow and will not load streams on most of the movies HOWEVER on my living room fire stick it works perfect and loads everything idk what’s going on I already tried….

Reinstalling kodi 3x Resetting firestick to factory settings I even went out to return it and got another one and STILL doing the same.

PLEASE HELP