28.10.2011, 13:15
You may want to check any physical firewalls on the host machine as I'm aware that there are some packet-specific software firewalls that cause intensive delay to sending and receiving of server/client packets. Also an issue that I'm aware of is specific sections of your code that may be called after the 'OnGameModeInnit' callback that may be taking extensive time to execute and since the SA-MP server is a single threaded application would cause a noticeable 'hanging' delay.