Well you can easily switch back to default!

Another tip for fighting: equip different weapons. I had only equipped the best weapon, as is customary in games, not knowing you can attack with all equipped weapons at once basically (each weapon has a separate timer). This makes a huge difference.

Switching back didn't seem to work for me. The game is super fast for me now.

Refreshing the page will clear any console shenanigans you've added (unless you changed state).