about horrible ping problem...

I have two android gadgets.

these are Nexus one and Optimus Z(LG)

the features of two smart phone do not so different.

and I usually have played with Nexus one, and recently I found out there is so horrible ping problem occurred.

I had not played with my optumus z and had not tried. but when I played with my optimus z, Oh My God! there is no any ping problem....Just clean play.

As I said above from the first, hardware specification is not so different between the gadgets.
than I was thinking the reason why only nexus one has ping problem (in my case.), I guess because of different OS version.

how about everybody? anyone has same problem like me?