I tried Optily by Flowbase. Total junk and waste of money. Not even an iota of improvement in my site’s PageSpeed tests. Plus, the whole site looks really sus: two domains for the same thing. Can’t log back in. Tried to reset the password (which I knew was correct) but it said that email my login email doesn’t exist. How can it not exist if I’ve received confirmation and receipt to that email? Looks very scammy!
Have you tried dropping @Thomas_92 an email ?
I used Optily and some other Flowbase assets, and although there can be improvement, it worked well and when I encountered an issue, there was a good support.