I am trying to optimize my site but results doesn't update

My website is very slow and i am trying to optimize it using Hummingbird but nothing seems to be working fine.
The layout was changed when I moved certain files to the footer, now I restored the website from a previous time backup and it seem to be normal.
However, when I tried to turn on the asset optimization it again went to the same state and looks like some elements overlap the slider and looks bad on mobile.
Apart from that irrespective of what I do the results in the performance report doesn't update.