Oh, I see you're getting at the PPG being FTL, which puts your other statement into context. Well, it's honestly been a while since I've seen that clip, but I don't remember it being timed as being done in a blink, exactly. Do you remember which episode that was in?
And other than that, their bests feats are stuff like running around the world, which is...very fast, but not massively FTL or anything. It's arguably slower than Post Crisis Clark. It's still fast enough to trivially blitz everyone in this fight, but yeah.
Besides, I have a hard time seeing them really hurt Clark, who is otherwise a dude that survives planets exploding or some such.