Please do not check for development packages updates automatically on Pamac launch
I found the very nice "Check for development packages updates" checkbox in the AUR options. After activating it, whenever I open Pamac, the update check gets stuck at 90% for about half a minute.
I assume that checking all the git and similar repos for updates just takes a while, which is completely natural. However, when I open Pamac, I usually just want to install or remove some package and it's annoying to wait for half a minute till it is done with checking for updates.
I would propose the following: Only check for development packages when the "Refresh databases" button is pressed or when the updates are checked in the background, but do not check for those updates each Pamac launch.