You knew you had latency problems how? Computer delay is caused by very different things and some of them can’t be fixed. Actual Recording Latency is a setting inside Audacity and nobody is shocked if you changed Audacity and that setting changed.
Did you go through the Recording Latency setting with the old Audacity, or did the natural setting seem to work?
My recorded track is slightly delayed/behind/out of synch with the original track when using Audacity 2.
I did not have to compensate for latency in the old Audacitys, so yes natural settings were ok.