So sad that this version of AD,
which is just released lately
still has lagging and flickering problems on dragging and resizing geometry objects ( texts and any other vector shapes included).
It is so harmful to the essence of great user experience of AD, which used to provide unparallel smoothness in its kind on macs.
BTW, I'm running AD on a 2012 MBP with the highest end of specs.
( The same problems had happened after I updated my mbp to sierra last month, with then AD got its 1.4.3 update. )
No such thorny issues observed in AP so far.