A week or two after reverting back to the usable gmail, Google notified me they would switch my Google apps mail to the new gmail in a popup on the corner. It presented me with two options: Now, Delay One Week. Instead of choosing one, I adblocked the notification. Two weeks later I'm still on the old gmail that responds to clicks. Hoping it never changes.
The redesign is absolutely horrible, and just like OP, I find it unusably slow (on a beasty Gaming PC).
I got Fastmail, and redirect my Gmail which will now only be used as a spam address. Exactly the same as when I went Hotmail to Gmail and Hotmail because my spam address.
The tech cycle continues.