When I tested it 2 years ago, it worked, but it was really big already, far more than it has to be for the work it actually does. I guess people do not really have microcontrollers in mind
Now, express have been developed further over time. Modules have the tendency to bloat over time and that will have happened with express, too...
I suggest writing your code without express. In any case, it will behave faster.
Thomas