I have had repeated issues with performance with SU 2015. Seems to vary with each model I work on but normally there is some serious lag with being able to move or edit object and components.
I have a Mac Pro OS 10.9.5, with 32 GB of Ram and a 3.7 mhz Quad-Core Processors.
Video Card:
AMD FirePro D300:
Your model, too, is very heavy, with more than 2 million edges. You seem to have a lot of polygon-heavy components, as the file size remains reasonable at 11 MB. That is why file size is a poor indicator of a model’s performance, what counts most is the actual count of edges and faces your computer has to process. Large textures are often blamed for causing performance issues, but most of the time they do not slow down performance significantly. Note that when you zoom or orbit, the work is divided between your graphics card and CPU so that raster effects like textures and shadows are processed by your graphics card, and faces and edges by the single processor core in your CPU that SketchUp uses. That is why, most of the time, using an image or texture is faster than representing the same thing with 3D geometry.
Thank you for the insight. I am using some Organic shapes ie. trees so that would add a lot of polygonal faces. I will try to remember that moving forward.
There are also plugins that let you use simpler “proxy” objects while building your model and then swap them for the detailed real ones when you are finished. For example