Decided to write 2 comment.
If we assume that mc is on hardest diff lv then this novel is low trash quality copy of 'tutorial is too hard" but instead of tower you get normal society.
1) Author informs us that MC is not really good at anything other then gaming.
2) By the time school best players get to 2lv and get invited to special group for best players. MC is nearly catching up on hardest lv to group lv.
3)Most players are playing on easy/medium lv, developer lv of difficulty of mc is not just 1or 2 stages higher but over 4(easy-medium-hard-very hard-hell-... don't remember if more).
4) The 1floor =tutorial is based on jumping and mc is able to clear it "slow-by author opinion" but the reality is he did it super fast. He who is on god(developer) lv difficulty and he who has 0exp with sport is able to clear this tutorial and catch up to others who play 4lv of difficulty lower then him , and get admitted to exclusive group of elite players.
If you ask me this novel is golden spoon and wish fulfilling by author. I SUGEST DROPPING IT!