It's not lag, could it be VPN through my ISP company? I am not running ToR and as I said I have the same prob with a Java based software.
if there is any older version of java in your pc, remove it then update the Java again just to be sure.
I got a similar problem sometime ago. some java software works and some don't. I fixed it by doing the "chkdsk /r", cleaning the registry, then removing any older java. not sure which one fixed it tho