are loading screens gonna be counted during a speedrun or not?

At the moment, yes

Why is it going to be counted to a run? I think it's unfair for people who have weaker devices

Its being counted because despite 8 verifiers/moderators, there are 52 runs in the queue waiting to get verified. Now image if we had to retime every single one of those to account for loading times, including the 1+ hour runs. We would also need to retime every single run ever verified to this leaderboard.

I like that one out of the 52 runs is my run