3D models exist for a wide variety of use cases. Most models are useful for high quality rendering in programs like Blender. Real time rendering, such as 3D on the web, prefers small file sizes to work well. If you have a 3D file that is slowing down your 3D website, I can help make it smaller by either retopologizing the mesh, compressing the textures, and trimming several other "fatty" properties that could be contributing to your large file size.