If Skaraans are beating you then blame your Captain and Engineer for being too slow. When a Skaraan uncloaks or jumps you have exactly one minute to defeat it before it cloaks or jumps again. That means you have about ten seconds to spin around, warp up to him, and start blasting away. Your ship needs to TURN FAST! Overclock the Maneuvering, Beams, and Torpedoes.
Your Captain can stop to think for about two seconds. Five seconds of hesitation is too much. And by the time he/she shouts "Hard about to starboard!" the Engineer should have already put 300% power to maneuvering.
"Damn the torpedoes! Four bells, Captain Drayton!"
(Likely actual words of Admiral David Farragut, USN, at the battle of Mobile Bay. Four bells was the signal for the engine room to make full steam ahead).