You reduced channels but didn’t increase monster spawns. This means the players now need to fight more with other players and bots. It also reduces resources driving up the price while making it harder for players to acquire the material.
You can reduce spawns to every hour and really make this game more difficult but 95% will leave it entirely. Fighting against players and bots for quest monsters isn’t fun. Increase monster spawn or expect an exodus of players when they feel the very real effects which are only negative.

