Yea im with
@rick-j any leafs that are more than 60% dead id cut off its not ideal to cut on a unhealthy plant but i think they will do more harm than good to leave them on. The only thing id be carfull of is stressing the plant any further with more " fixes" to try to revive it bc this could damage the plant even further. We can all sit back and give you our opinions and diagnosis but your the one that knows the plant best and its history up until now. I took some bad advice recently that has caused me a cascade of issues from somone very decorated on here that assured me 100% they where right. Its not anybody on this thread or that you know. Im just saying take advice from people but also trust your gut and insticts as well. Hope this helps and hope your plants give ya some nice buds. Smoke one for me.