Exporting low quality videos?

Hey, I'm still pretty new to Animate, and I'm having a little trouble with exporting my files as .movs. The exporting process itself is fine, but the quality on the exported videos is horrendous. The video quality itself looks like a bad jpeg and the audio (which was fine in the program) sounds like it was recorded on a bad microphone.

Does anybody have a quick fix for preventing this/making sure the quality of the export is high? and yes, I did make sure all of my apps were updated to the latest version.