Shadow hearts 1

I recently started playing my favorite jrpg series (not you ff)from my teenager years shadow hearts starting from the first game.

While playing i met a very difficult boss and need some help in beating it.....the push ring in London near the rats hideout, any suggestion on how it could be overcome using the emulator settings? My button mashing skills arent as good as they once were

I am using the pcsx2 emulator.