time.Sleep() after CancelRequest

Hi, I want to use CancelRequestContextWatcherHandler to cancel requests after a context timeout on a request, and I see here time.Sleep, which in fact holds the connection for 100ms just like that. Is there, in theory, some kind of synchronization option?

https://github.com/jackc/pgx/blob/98e7e9f2975b2a904d3eee25c453297dcb58c7cc/pgconn/pgconn.go#L2509