Pipe shape from curve is too heavy

Dears,

As I know, the revit doesn’t work well with 2 degrees surface.
When I need to model the pipe ( handrail, cable…) I always need to convert the profile to 3 degrees curve and sweep flow the curve to make 3D pipe. The issue is the file will be really heavy.
I found only solution that converting the profile (circle to polygon line) then I have a lot of lines in the 3D shape. (not good for visual)
Does anyone has the same issue?
Any suggestion to improve the pipe shape?

Thank you,