ippiDilateBorder_16u_C1R performance issues

Hi,

In the previous ipp versions I used unique function for 3x3 morphology - ippiDilate3x3_16u_C1IR.

I'm now using ipp18. The new general function - ippiDilateBorder_16u_C1R with 3x3 mask is slower than the old one in about 17%.

Any ideas how to improve performances?

thanks,

Ella