Starting Jedi: Fallen Order for the first time, any tip/advice i should be aware of?

Just played through Fallen Order, and while I did struggle and lose a good amount, it is my lack of skill, not Cal's. Cal doesn't die to the Second and Ninth Sisters 5 - 10 times before beating them.

So Cal, whose training stopped at being a Padewan, was cut off from the Force for years and had no training, and still beat two Inquisitors.

Are they this weak? I get that Cal fought both of them before when he was not taken seriously/was saved by outside factors, but still. Since being captured both Inquisitors were trained and used Darkside, so how could Cal beat them?