I have 9 externals JS scrips and 6 externals stylesheets. The goal is regroup all JS scripts in one script and "if possible" regroup all CSS stylesheets into one stylesheet.
However, I use an add-on to defer all JS to the footer but it is not enough to speed up my website.
I work with a developper but I try to do some things on my side to limit spendings.
So, you confirm that I have no choose to ask custom dev for this?