How to improve Server response time ?
Since I switched to DO (AMS3) for my 8GB Droplet, the server response time is up to 3 times higher than it was with my previous hosting company.
Worst, in Google Webmaster Tools, I see that now Google takes between 500 and 600 milliseconds to download pages while before DO it was taking less than 200 consistently for the past few years.
Anything database driven seems to take longer. It looks like the time to first byte/responding to a query is much higher.
I use the same CDN as before, same applications too.
Any advice or someone knows where this could come from?
My CPU/RAM usages are really low, so I don't think that upgrading to 16GB would help.