Here Is a visual reference to show the difference between the camshaft OP is using and the cam YR suggested. The triangle shape between the two lobes is overlap. The faster lobe ramp rate helps slightly, but as you can clearly see there is a LOT more overlap area in the MP cam YR suggested compared to OP's cam.
This was done on engine analysis software which retails $499 USD, So you be the judge of it's accuracy.
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