seems like 2 seconds of delay is max for sipvicious

src/main.rs

@@ -18,7 +18,7 @@ use tokio::net::UdpSocket;
 use tokio::time::{sleep, Duration};
 
 // delay seconds for tarpit feature
-static TARPIT_DELAY: u64 = 4;
+static TARPIT_DELAY: u64 = 2; // more than 2 seconds make spivicious go timeout
 
 struct Server {
     socket: UdpSocket,