Faster rendering

Hi all, i am trying to load around 100 3D models in cesium simultanously and hence the loading time for cesium, goes up massively to around 3-4 minutes. Is there a faster way to load, or boost the performance of cesium?

Is it the same model? If so use model instancing.

but there are100 different datasets. can we use instancing for loading different datasets in the same model?