Yeah, try to limit Scenes to 2 or 3 sources of light, unless you got a 4080 / 4090 / 7900 XT / 7900 XTX card (or the equivalents of the previous generation maybe), then sure you could go to 4, 5 and 6 sources even. But generally-speaking 3 sources is 'max' (for efficiency, scene lightning quality and performance balance).