Using too many post effects in one scene will have heavy impact on the performance.

Too many effects will slow down performance of your published scene. Note that effects are ignored in AR. 

Recommended number of post effects based on device:

Desktop 3D:

• 3 or fewer for fastest performance on all devices
• 4-5 maximum (slower performance)

Mobile 3D:

• 1 effect for fastest performance
• 2 maximum (slower performance)

Augmented Reality:

• None; Effects are not supported in AR. 

VR:

• 3 or fewer for fastest performance
• 4-5 maximum (depending on device)

The overall performance of your BRIO scenes depends on setting constraints for all factors in your scene. View the full Performance Guide Overview for more details.