Hey,
So your express entry is the mode of entry into the country. However, you would first have to check if you are applying under the program of a Federal Skill Worker or Trade Worker.
The CRS score is important; however, the if you are going under an FSW program, you would need to have a minimum of 67 points out of a 100.
CRS as on the last draw earlier this month was 415.
In a nut shell- both scores matter.