Server lagging due to No Memory?

[Pykaxe]

Hi, thanks for clicking my post. So a few days ago, I made a script that will show me the Server's free memory if you do /checkmemory,

I currently gave 2GB memory to my Server on localhost (-Xmx 2G)

When I checked how much RAM the server is using I was shocked!
It was using 1342 out of 1908 Megabytes. I Checked when 1 Player was online

Is this normal? Should my server be using this much ram with 13 Plugins?
Can you give me some tips on how to Lower the usage?

Here are the plugins I'm using:
Citizens, ProtocolLib, skDragon, skLib , MundoSK, SkQuery,
skRayFall, Skellett, Skript, SkStuff, Tuske, SkUtilities, Vixio

Script size:
All of my Scripts 210KB


Thanks for reading. I hope i can fix this. I really want my players not to lag

 

[ShaneBee]

Depends in how you coded those scripts.

 

[ShaneBee]

It probably means nothing, for my server using the argument "java -Xms3G -Xmx3G -jar spigot-1.8.8.jar" actually fixed it. It made the used memory go down to under 1 gigabyte and my server is relying on some really heavy skripts.