I suck at the Arena and need someone to carry me through

specifically, the last two quests, I really want the divine slasher because it looks dope and I am a LS build, issue is I cant seem to get my times even into silver territory on the last couple of arena quests which just makes them a huge pain, anyone got any tips OR would anyone be happy to pair up with me to speed it up, either would be good but solo arena is bad