Hello is that possible to have all categories in a tree like form on main page, like with other forums?

Hello @Walabise
i went through the same youre going through atm and in 2 days i learned to use lunix console/vps/ssh/sftp/nginx/vim and maybe some other things i cant remember anymore. So the thing you probably dont want to hear - its not easy and you cant just slap it on your hosting, because typically hostings are run on old tech like apache and dont support node.js and alike.
So being broke ass not able to pay for services from guys from nodebb but having a lot of free time, patience and straight hands i managed to conquer this myself, which i wish to you to. Nodebb is by far the most awesome designed thing ive seen on web.

@HolyPhoenix Yep and its slow typically. I was on godaddy and on hostinger, and after moving to digital ocean responce times are literally 10x better. My bet is that they abuse people who are not tech savvy, limiting them by clustering on already overcrowded servers to maximize profits. I mean no matter what quality of service you provide(ie support etc) nothing will outvalue low responce time. On godaddy i have at times up to 5 seconds and on hostinger i still have 2-3 seconds sometimes for the page to even start to load.
Needless to say its literally instant on digital ocean. Moved all my websites there, very happy that i struggled through all the knowledge you have to get to pull that off.