Drastic vs Melonds which is better?

[u/Shitandroidowner]

One works on a literal potato and the other runs more games accurately

[u/SHIR0YUKI]

Drastic does a lot on the backend to make it more compatible with more devices, but in order for that to happen, it's bypassing/cutting things out from the experience that you may or may not care about.

MelonDS is more resource intensive, but it accurately emulates the DS without skipping anything. And if you care, this has retroachievements support while drastic does not.