Low page Performance after installing W3 Total Cache

Hello,

This is my webpage : https://www.manele-online.com

After I finished my website using wordpress I got 92 Score on Page Speed and about 84 Score on YSlow ( On GTmetrix ).

Installed the W3 Total Cache and optimized my website with the standard options enabled. ( I used the GTmetrix tutorials ) Everything was fine, my score went up to 95 and 90 on YSlow.

After a few days I’ve posted some new content on my page and I did another check on GTmetrix … surprise : 88 Score on Page Speed and 77 Score on YSlow. My Page Performance went 30% lower …

What is the problem ? I just added some standard posts, pictures + text.

So how can I increase my page performance to its original speed ?

Additional info about my website :

The GTmetrix report with low performance : https://gtmetrix.com/reports/www.manele-online.com/nHFP0ict

Is my website loading slow for you too ? https://manele-online.com/

I use wp smush it for pictures and all pictures are bulk smushed.

Installed plugins : ( add meta tags ; Aspexi Facebook Like Box ; Captcha ; CodeStyling Localization ; Contact Form 7 ; Facebook Comments ; Google Analytics by Yoast ; Google XML Sitemaps ; Huzzaz Video Gallery ; Really Simple CAPTCHA ; Ultimate TinyMCE ; W3 Total Cache ; WordPress SEO ; WP Smush.it )

PS : Now I even get the ” Compress components with gzip ” GTmatrix warning – I didn’t got this 4 days ago when the page performance was good.

So, can anyone help me get back the performance I had one week ago ? Or can anyone tell what caused the performance downgrade in just 3-4 days ?

Thank you ! Any help will be much appreciated !

https://www.ads-software.com/plugins/w3-total-cache/