[xPhantom]

I added your server, which is listed on your signature, to my favorites on SA:MP and the ping is nearly 350. Anything above 200+ will make anyone lag to the point where the commands are not sent out and received as fast as it would if you had a ping lower than that; also upload speed plays a factor in this as well but that shouldn't be too much of an issue if its just you and your friend. Your only solution is to get a better internet provider or just host your SA:MP server off of a host (VPS, regular gameserver, etc.) since hosts tend to have better peering.