Hey razmaz51, try the setting that lets you set a value for indirect lighting intensity. And set it to 0. that would be like turning it off I think. But I would assume that there will be a loss in visual quality because there won’t be any light bouncing off of things. So you have to find a way of making it work for your project. Maybe some lights have it some lights don’t.
Also, all lights have a setting under-performance called Max Draw Distance. Try playing with these values and it should help you!