The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 85.8 k B or 76% of the original size.
Image size optimization can help to speed up a website loading time.
It’s better to minify Java Script in order to improve website performance.
The diagram shows the current total size of all Java Script files against the prospective Java Script size after its minification and compression.
The chart above shows the difference between the size before and after optimization.