Bug Why does my trail look SO bad?

I am making these android game about dodging meteors, i want to add a trail to the meteor for aesthetics. However, I cant make it look good: it looks all laggy and pointy, its not smooth. When it falls with the meteor it just looks like its a really bad resolution sprite. The following settings are basically the default one.

I guess trail renderer works bty
My Unity version is 2021.3.16f1 Personal. Is this maybe a setting I chose on accident?
The interesting part is I coded a game like this when I was 10 yo and it looked good.

 

This jagged trail issue along with a heap of other issues with builtin stuff makes me think Unity loves to give the community a hard time on everything. Just visited a bunch of threads with this same issue with no definitive answer in sight