The most sensitive test case is 78b-2t1c-avf-ethip6srhip6-ip6base-srv6enc2sids at almost -9% in MRR results. See graphs in [0]
The cause is [1]. So far it is not clear whether the functional addition there (related to parsing IPv6 extension headers) is expected to impact SRv6 performance this much.

[0] https://s3-docs.fd.io/csit/master/trending/trending/srv6-3n-skx-xxv710.html#t1c
[1] https://gerrit.fd.io/r/c/vpp/+/34576/9#message-d7bb3357d7509379e8f87334ad77ee5a12f4fd6d