Texting videos

Does anyone else have issues with sending videos to non Xfinity contacts....ie. the video they receive from you is all blurry? I never used to have this problem but now every video I send is barely viewable on their end. I have reset to factory settings and used both galaxy & Google messenger. I have a S9+. From all of the research I have done, it seems like the only way to work around my video quality decreasing during transfer is to create links (which i don't want to do). Just don't understand why all of a sudden I have run into this problem. Hoping to get feedback from anyone with similar experience.