Antilag with high fps clients

Perhaps hardcode here could be replaced by 1000 / pers.clientFPS. Though not sure if trail nodes would need to be increased.
https://github.com/rtcwmp-com/rtcwPro/blob/6753e95ed1e94510610769a4e88da88eb4aa0ac5/src/game/g_antilag.c#L84
