Yes part 1 sakura used shunsin (with clones)Probably even end of part1 Sakura > Karin.
And she was good with kunai and fought who had strong offence jutsu
Not to mention part 1 sakura used a "bite " to fight her enimy
If she did that to karin .
Karin lose chakra ,sakura healed (if karin even harmed her),sakura end karin