Explore this test scenario. Click on model1-model4 to add additional models. Be sure to adjust the camera view (using your mouse) to experience optimal FPS performance.
I have experimented with various simple models... whether utilizing reflection or not, and smoothing vertices or not; however, when approximately 40 models are rendered, the FPS drops to around 20-25 (especially when moving the scene!)... By increasing the number of models to 55, the FPS decreases further to about 12! Any insights into the cause of this issue? It doesn't seem to be related to the graphics card or computer specifications... as tests were conducted on a Quad Core 4x3.6Ghz, 8GB RAM, Geforce 880GTX system. Similarly, the Xperia Z1 yielded similar results.
Could there be an error in my approach? What measures can I take to enhance the performance? For instance, Ogre has the capability to render up to 5000 identical models seamlessly without any performance hiccups (through DirectX).