Reducing lag?

Just now I started CA and lagged a hella lot.
I logged on, pressed enter and had to wait like 5 minutes, could not connect, did it again, connected.
Then I was in server select, but it still said please wait, connecting to server and I was waiting for 10 minutes.
This morning I had absolutely no lag.. what happened?

re-download youre hacks/ engine.exe


and reinstall if nothing works how it sometimes works for me