Paramount+ freezes and buffers constantly!

I have Paramount+ on X1 and it is constantly freezing and buffering. No other streaming service does it and the web is full of complaints about the same thing. The only answer anyone gets is that it's their Internet connection or speed. I have the fastest you have so that's not the problem. Can you please try to figure this out? There are so many things I want to watch on it but it's infuriating. I'd rather get it fixed instead of canceling but may have to.