In order to fix this lag there are two things I have attempted and I have not been able to identify which is the solution but doing both seems to fix the problem for both of my friends.
Keep in mind we did this on windows 7 so I can't guarantee anything for other OS's.
Step 1: Allow all incoming and outgoing connections for Shootmania.
-Click start->search "firewall" ->click "Windows Firewall with Advanced Security" -> Inbound Rule -> New Rule -> Select Program -> Browse to your Shootmania.exe file -> Select "Allow Connection" -> Keep all boxes checked -> Name it anything, I did "SM MP" -> Finish.
Outbound Rule -> New Rule -> Select Program -> Browse to your Shootmania.exe file -> Select "Allow Connection" -> Keep all boxes checked -> Name it anything, I did "SM MP" -> Finish.
Step 2: Then open the updater file located in your Shootmania path.
This is all I can remember but when I get home I will go through and find out which other files can be deleted. I took out other steps because people think its harmful.
Let me know what works and what doesn't, this isn't a guarantee but its worth a shot!
