I was using W3 Total Cache Plugin other then this plugin what I want to do to speeding up my WordPress site.
I would advise to, instead of using more plugin use less plugins, ofcourse how fast you can make your website depends on the speed of your server.
First of all check your page via the console(F12) and go to the network tab. You can see all the elements that are loaded in, and you can check how long it takes for them to load in. So if some load elements load too long check them.(For example you can edit some images if they take too long)
What also helps is the following:
If you use too many plugins these all have to be loaded in as well, only use those wich you really need instead of installing 20+ plugins in the hope of making your pages faster. It usually won't work and make your website load even slower.