The minor enemies are too powerful during the story stages.

I simply cannot fathom it—does your game actively discourage new players?
During story phases, minor enemies deal absurdly high damage. They strike twice and you're dead. You get back up, take two steps, and die again. Given this season's reduction in monster numbers, hasn't the damage been ramped up far too high? Simultaneously, you've weakened build effectiveness. Doesn't this make the gameplay utterly frustrating for players? What reason would a new player have to play a game where they get killed by mobs after running two steps? Before even reaching a checkpoint, stuck in an endless loop of respawning at the same spot? Unable to reach the next checkpoint? Where's the fun in that? No wonder so many players are quitting. As someone who only played for one or two seasons, I painstakingly completed the story, but honestly, I just don't want to play anymore. There's absolutely no joy or appeal left in the game.
Furthermore, the heavy stun effect while running is an utterly daft design choice. Wasn't the whole point of implementing a running mechanic to let players traverse maps faster and reduce the tedium of traversal? Why on earth add a heavy stun mechanic? It's genuinely idiotic – is it just to make players feel more disgusted? To accelerate their departure from the game?