The following are some of the practices that we have observed to significantly improve the performance of a site and network
-Some plugins only need to be on for development or diagnostics or troubleshooting: NEW RELIC, QUERRY MONITOR, PLUGIN ORGANIZER
-We need to use less code(add css or javascript code only when absolutely necessary, gotta keep in mind the perfmance hit)
-Astra theme is no go
-careful with templates, they may have unnecessary data that creates junk in the network and affect perfomance
-Try to have css and javascript in the footer
-Enable lazy load on the below the fold components
-Implement CDNs sp that all files some of the requests don’t consume our server resources
-Smushing does create a boost, still gotta make sure that image or file smushing is more preferrable or both are good
-Try to have all our images in webp format in the first place(or maybe we can always convert later)
-If we need to have custom fonts, we need to add that in the footer
-We need to perform periodic performance optimization sessions for our websites and our clients’
-We need to keep all our plugins up to date