If youre getting placed into matchmaking games in CS:GO that feel laggy to you or are giving you high ping, it might be worth setting up a command to limit the max ping of servers youll join. The mm_dedicated_search_maxping command will only search for matchmaking servers with latencies lower than you specify.

Is 1 ms jitter good?

Jitter is the irregular time delay in the sending of data packets over a network. Acceptable jitter means what we are willing to accept as the irregular fluctuations in data transfers. Jitter should be below 30 ms. Packet loss shouldnt be more than 1%.