When trying to debug, especially performance problems, a common approach is to go to the activities view and sort by e.g. TimeMaxLocalExecute.
In the new graph viewer, when attempting to sort, it does a textual sort such that e.g. 90.554ms sorts higher than 9.756s (see image below sorted by TimeMaxLocalExecute – DESC).
Note that not only are the units not taken into consideration, but the pure numbers do not sort correctly due to the order of the decimal point.