SHOULD I STOP GIVING DASHCATS

I am able to get 60-82 in SIMCATS and Pyqs as a mocks with VARC score being consistent 30-42 range but when I give dash cat i score drops dramatically to 40 and even 14 and 16 , especially VARC goes down to below 20 , i am not able to understand why I am able to score good in PYQS Simcat VARC section but struggle to cross even 20 marks.
It's shatters my confidence.
WHAT SHOULD I DO???