In a previous topic I received awesome advice how to speed up my site graphic design forum by removing unnecessary plugins, which helped speed up my site. I also increased memory to 4GB, and I have 2 VCPUs on Digital Ocean.
Yet, the site is still considered slow according to Google Search Console. See the chart below that shows that 759 pages are still categorised Poor, and the justification is that it takes longer than 4 seconds to load them. It looks like js files take up a large part of the page loads.
Are there are any strategies to try to speed up the site further?