If i select a torrent then apply an outgoing bandwidth limit to that torrent, the speed doesn't change.

Hi.
Just wanted to confirm this annoyance.
Happy New Year

It works OK when global upload and download limits are set.

You are right.
When global limiter is enabled everything is back to normal, sell sort of back to normal.

Actually, I have used Tixati's overall limiter for a long time.
Bit with Tixati version 2.66 it is not working as good on my system, I find version 2.64 to work much better.