Lighting a Dungeon

Whats the best way to light a dark dungeon that has torches without using static lighting?

I’ve tried point lights with dynamic shadowing on/off and I get massive performance hits with only like 4-6 point lights.

What should I do to get better performance?

Use movable lights. DanielW summarized it here

Also, not every light needs to be a shadow caster. Try using ies/light functions for torches instead. Also, use ambient lights to simulate the light bounce, so you don’t end up with a black tunnel with orange spots.