800mb blender file to Babylon struggle

[carolhmj]

Since you have a city with a lot of buildings, cars and many other kinds of objects which can repeat, instancing: Instances | Babylon.js Documentation (babylonjs.com) is also a powerful way to improve performance. I also recommending reading through Patrick’s fantastic post here, he goes through a lot of necessary steps to ensure your scene has good real time performance: What are the best practices for environment meshes made for Babylon? - #6 by PatrickRyan