My comments were about Google Keep, not Gmail, though I do actually find the Gmail web app pretty slow too - it takes several seconds to send an email.
I didn't know there was some kind of secret mobile Web version of Gmail - I get a blank white page when I open your link on mobile tho (using Brave)?
Oh, I totally scanned passed "Keep" in your comment. The mobile web version of that does indeed seem a bit rough. It's been a while since I worked at Google but when I did, Keep was a one-engineer project so the amazing thing is it exists at all.
I didn't know there was some kind of secret mobile Web version of Gmail - I get a blank white page when I open your link on mobile tho (using Brave)?