[deanhills]

i do two ways. one from putty ssh via speedtest script. and the second is via vnc connection. directly go to my vps os desctop using mozilla firefox and go to the web directly from my server. and the result difference is not too much. almost same.

@sagher I thought your question was, why is the speed of your VPS so slow?  My answer is because of the way your ISP - your Internet Service Provider is set up to reach the location of the VPS.  Got nothing to do with putty or mozilla firefox or browsers, or with the VNC - the VNC can never be faster than your ISP.  It's the way your ISP - internet - works with the location of your VPS, i.e. the number of packets to the VPS and back and how smoothly and fast they are working.  It is completely beyond your control to change it.  If the ping is slow, the only way to fix the problem is to change the location of your VPS - which at post4vps means you need to take another VPS with a location that works faster with your ISP.  This also means you need to test the new location first for latency with your ISP BEFORE you apply for the VPS - to avoid any disappointment.  You can find a mirror IP to test usually at the Website of the VPS or you can ask at post4vps.