Page Load time Issues (Sometimes fast and sometimes slow)

[romanturbo]

After optimizing my site im checking the pagespeed. And those are my results

Google Page speed insights: 86/100

http://www.bytecheck.com/ : 0.625

webpagetest.org :  http://www.webpagete.../170131_DV_X89/ (7.7s)

keycdn sitespeed: https://tools.keycdn...13386c7328b4572 (3.1s)

gtmetrix: it gives me the worst result, and i consider that this loading time is awful https://gtmetrix.com...ou.com/ktUky0pf changes from 5-8s (Ive noticed that the onload adds like 2 more secs, whats that?)

https://tools.pingdom.com/ : average 2.5s

 

 

 

My servers is hosted in france by ovh. A shared webhost, 1 vCore (no ghz info) and 2gb Ram. I have considered upgrading to 3vCores 6gb ram or even 4vCores 8gb Ram, however i dont know if it will make a good result.

My customers are located in spain.