Ryder did his best work in the 1st qtr. Freo started to take control of play around the mid-point of the 2nd qtr and Paddy all but disappeared from view in the 2nd half.
Seeing as that boof-head refugee from the Ooftits could never realistically be a ruck match for Sean Darcy, it's a reasonable conclusion to draw that Ryder has either been carrying an injury that's affected his form, or picked up an injury trying (and failing) to bash Hodor into submission.
More likely, he carried an injury into the game that Port don't want to admit.