how badly was C9 when playing vs TSM?

i saw another post where everyone agreed that they trolled with really bad performance after game 2, but im not good at anylising so i cant make the difference between a bad c9 or a good tsm. can someone explain to me why its c9 being bad and not tsm playing well that ended the game. (only thing i noticed by myself was the 2 zeyzal engage that did nothing good and killed him) {{sticker:sg-lux-2}}
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