How to check who's lagging?

In large 8v8 type games, it seems like certain players start to lag because their computer can't handle everything going on.
Is there a way to check which player is causing the lag as to avoid playing with them again and/or only playing smaller maps?
Maybe a scoreboard or command, surely there has to be a way to know who's causing it.
Thank you in advance.|||F2 and check the players sim, im not sure if it is supposed to be low or high
although as far as i know it is best when at 0????|||Hit F2 this will show pings and sim speeds(the rate the individual computers are running the simulation).|||Check SIM and Ping.
For ping, anything above 300 could cause lagg issues.
Anything above 400 will cause lagg.
For SIM, anything above 0 is ok. 10 SIM is the best one.
Anything below 0 will more than likely cause lagg.|||Thanks guys|||I would like to point out that having a sim below 0 isn't the same as causing lag, instead the game just runs at a slower speed.
Mike|||OrangeKnight|||Players with a ping which spikes like crazy, as for example, from 307 to 397 ping constantly going up and down during the entire game, will make the game to lag as well. --> So F2 will report you on all these cases mentioned on here.|||Sim speed will tell you if they have a slow computer, anything 0 or above is normal speed.
Ping will tell you the latency of the connection but it doesn't show if a player has enough upload bandwidth.
Unless there is obvious ping spikes you can't tell who the lagger is.
Another thing, just because a player lagged in one game doesn't necessarily mean they are going to lag in the next game.
So don't go around labeling people as laggers based on isolated instances.
There seems to be some problems with the way this game connects players and maintains a connection.
The party line seems to be that it is a p2p connection and they (steam & squenix) have nothing to do with it.
Whoever has the responsibility to fix this either doesn't know how or isn't allowed to.|||-Axiom-