In fairness, the work on the mobile front has shown a lot and I appreciate that! The android app used to take so long to load (and half the time it would just sit in a permanent loading state) that I flat out didn't use it. Lately it's improved a lot and is 'good enough' for my use case. The phone, at it's core, isn't really the tool I want to use for any long-form writing but it's totally sufficient for referring to documents now.
My biggest "speed frustration" right now is opening a new window in the Desktop app. Searching + navigating to a page within an existing window has gotten to be super speedy, but searching and cmd+enter to open in a new window still has quite some lag to it.
