Hydraulic roller cam for bb?

I hope nothing fails but I was told the cam would beat the rockers up and would eventually have to replace them also that the engine would not perform well. The engine sounds good although It seems not have as the rough idle like the flat tapped did they have almost the same lift

Keep an ear out. It's possible a rocker could fail with a pushrod punching a hole through it. With the increased spring pressure that camshaft requires, the rockers will be the weak link.