Same robots but the one given in the example is two times faster

I was doing Practice 1 - Automation of Spreadsheet Calculation from UiPath RPA Associate Certification Training and I have no idea what’s wrong with my robot. It takes him 2x much more time than robot that is given in the example. Someone have maybe idea what I did wrong?
Main.xaml (21.8 KB)
FasterMain.xaml (21.4 KB)

All I get is missing packages. What packages need to be installed for this?

Okay. I did again the same task after few days and now it works as it should.