It's due to HIS connection. Ping is irrelevant for warping. You can have packet loss with low ping as well.
To OP and similar minded:
For further reading on timenudge and netcode in general, I like to give you this link: http://www.ra.is/unlagged/
On the left hand side you find a menu. Read the parts "A solution" and a bit further down the part "What's cl_timenudge?". No way this can make you lag/warp for others.
However, I'm all for removing timenudge. End this ten year lasting "whine about an option nobody understands"-cycle ffs!