If you are using many instances of the same models then the scene may benefit from using the Instance Geogroups setting, this can be found in Settings (F6) then selecting Renderer from the left hand side of the Settings window, then go to the Performance tab. From this tab you are able to check the property for Instance Geogroups which will then present 2 further options, Instance Threshold and Instance Vertex Limit, to learn more on what these do you can hover over each option to see their tooltips. By instancing the Geogroups you can reduce the number of batches (draw commands sent to the GPU) which may improve your performance.