I said buggy, not laggy. Any errors or freezes in homebrew crashes the entire system, something that is fairly common, this doesn't happen on Atmo due to much better error handling.
Why does everyone think I said "laggy"? I never said that
Switch doesn't provide enough power to power a HDD with an OTG adapter I think. Anyway, who's gonna do that? It's really inconvenient, unless you like velcro the HDD to the back of your Switch, and even then, you can't charge the Switch at the same time and it's gonna drain your battery even faster.