Guess you haven't used the full ability of discord then. Discord and TS have an equal Bitrate, if not, Discord has a a bitrate setting where you can make the quality better.
Plus, you have it the other way around. and cough cough
Compact mode is a thing.
Now IMO, discord is more suitable:
Full customization with roles, along side channel tabs, where you can minimize so you can hide which tabs you don't want to see, along side what tabs you want to see.
Roles are easy to manage, and you can separate groups so they show on the side and you can see who has what by just clicking their name.
Free. (Do I have to say more?)
Customized chat rooms, where you can select what roles can be in it.
Easier UI, everything is nice and simple, easy to know where everything is.
Want to let everyone know about an important update? @everyone / @here
Easy to use and customize bots.
Want a fancy looking discord? Use BetterDiscord!
Want emotes to make your chatting experience more enjoyable? Add em! If you're feeling really fancy, you can pay $5 a month for Nitro!
On the spot emotes, not having to click on somebody just to see a photo.