We're planning to use FPD for our webshop but first want to know what the best requirements for the hosting / server are? We found a few sites that are using FPD and find them mostly a bit slow. What are the optimal settings? Is it usual for Wordpress to become slower with FPD? Hope to hear some experiences and tips. Thanks a lot!
One thing that can cause those sites to be slow may be the fact that the use very large images to load in FPD.
I haven't experience FPD slowing my websites down. I have used it on both shared and VPS with no issues.
For the requirement just make sure your using some recent php version like 5.6 or above .
Here is a good place to start