I'm no expert but in my experiences the more dramatic looking the cam the harder to get it to roll over.
I'v got a bear compound with the string going over round wheels & the cables over egg shaped cams & it draws much easier than my Martin with big funky cams. However, that Martin throws an arrow alot faster than the Bear with both set at 70 lbs. Actually the Martins only 68 lbs. I dont know how much faster but its way flatter so it must be faster.