OpenVPN very slow after updating pfSense from 2.6.0 to 2.7.2

[PascalB41]

Hello,

I've been using OpenVPN for several years on my pfSense 2.6.0 for roadwarriors access.
The bandwith was really high, near 80 MB/s.

And we updated pfSense to 2.7.2... now the bandwidth dropped to about 5 to 7 MB/s

Do you have any idea of the cause ?

Thank you for your help.