Do fillets on a template increase corridor processing time

Is including rounded components using the Vertex Fillet Tangent Lengths (for example, on curbs or guardrail) going to have a significant impact on corridor processing?  Basically, I'm looking for best practices here and whether this is worth including on a template at all.  We want to avoid negative impacts on corridor processing, but if this is insignificant, maybe it is worth it.  Thanks,

Jon Blanchard