it turned out that I did this:
Disable or reduce the quality of resource-intensive functions:
Disable Nanite and Virtual Shadow Maps in the project settings.
Use Lumen software ray tracing by disabling Hardware Ray Tracing.
Disable or minimize post-effects in the viewer (Post-Processing).
Reduce granularity and memory usage:
Lower the resolution of the textures (import with smaller sizes).
Combine meshes to reduce the number of draw calls.
Use LOD models with a low polygon number at a distance.
Optimize your editor and work environment:
Close all unused applications on the Mac to increase the available memory.
In the editor, disable the automatic compilation and updating of assets in case of changes.
Use the “Save Layout” function in a lighter and simpler way, without active tabs and windows.
Use console commands to monitor and improve:
Enable FPS statistics: stat fps, stat unit.
Limit the editor’s frame rate to t.MaxFPS (for example, t.MaxFPS 60 or less) for predictable load.