Having issues streaming on fiber optic?

Has anyone else having issues with streaming on fiber optic internet? I had no issues when using cable in

DSL. Is the equipment unable to keep up? Is there a way around this?

Hi there is use dsl fibre optic get around 40 meg wireless and have never had problems with buffering, but buffering can be caused by lots of things like the device you are using or the app or even the service itself lots of avenues to check tbh