100mm f2.0 works very well with camera set up logically (AF+MF, touch switched off, single point select, continual AF disabled)
70mm Sigma f2.8 macro a bit slow, but it's a bit slow elsewhere. Things improve with limiter set to appt range.
Tokina 11-16 f2.8 works well (not a hugely fast focusing lens in any case, but mitigated by inherent UWA depth of field)
Canon 70-200 f2.8L nonIS works well with focus limiter set.
And the 22mm is obviously pretty damn excellent, fast and sharp.
Sorry to hear that the Tamron 18-270 lens doesn't work so well. That's my goto lens... pffft.
The 85mm f1.2 is relatively slow elsewhere by all accounts...
@dickgrafixstop what are you basing the turkey bit on? Have you used the camera? With grown up AF settings?