Never able to get 20 TPS? Possible Memory Leak

First off here are the things you need to know:

http://aikar.co/timings.php?url=7019775
http://gyazo.com/b61d75f081af79a67cabbba3fb7ef009 <-- Plugins

I have checked the server.log there's not one single severe, The server constantly goes down in RAM and It's getting on my nerves and I need a fix ASAP, I updated all the plugins, even spigot a bit ago, Even If i'm the only one on the server it'll still never get a perfect TPS.

It's hosted on a dedicated server, 32GB Intel...

Never able to get 20 TPS? Possible Memory Leak