Well, it's not something that have I expected.
But, still, I can find some useful information.
Some graphics and font seem off in the video which basically confirmed my previous assumption of some system-based problems exist. For that, I'm going to change immediately. (Likely within 24 hours.)
The mix of 2D and 3D graphics can be a problem for many. However, I don't think I'm going to do anything about it at this moment. It can serve as a filter for both me and the players. It's partially working as intended. If that's the major reason for 50% of players, I think I have no problem with that.
The default UI layout of ancient RMXP does show its age. A game from 2004, certainly needs some modernization in this apart. Maybe I will rework it later. But, the priority will be lower than functionality and story.
I think I also miscalculated the time you need to get through the tutorial. Reading text certainly can get things much slower.
Anyway, thanks for the video. I have some concerns defused.