For some reason, an animated jungle cat that I corrupted once with speed had extremely poor actions and reaction time to commands.
When I send it to attack enemies with control companion, or used "attack nearest", it just stopped for like 10-15 seconds and only after that waiting period did it start to move and attack enemies.
I don't know why, but it's as if goes through a massive spam of actions before finally reaching the attack function. This made it nearly useless as it's pretty much beaten before it even starts to give strikes back.
Sometimes summons are like that, it's not exclusive to these, though. I recommend using the 'Guard Me' command if you've taken any active role in the combat (hostile action against an opponent), it tends to get them moving.
Never has happened to me in any other summon or animation, just this one.
Only the jungle cats.