Project Performance Issues

I’m having trouble optimizing my project. Until then what I was trying to do was configure LODs of the models, apply merge to the actors that exist in the scene and work with World Partition to optimize the map. I also tried setting an Occlusion Volume to reduce the amount of objects rendered over a long distance. I thought that the problem could be Lumen, so I decided to disable it, but it improved little. Am I forgetting something? I used Unreal Insights to analyze what is happening and I still haven’t found the source of the problem.

the scene has 1,153 actors

my system specs:
Intel i5 9600K
16GB RAM
RTX 2060 (6GB)
NVME M.2 1TB Western Digital ( 7000MB/s)