Run Lesser but Tougher, Run Faster?

I experimented with different ways of running this week.
I felt that the runs on 6 and 7 Jan were more fun, challenging and exciting BUT slower.

And I wanna do more weighted runs from now onwards.  :)

Date	Route	Distance	Timing	Pace	Remarks
7-Jan	3.5 km seletar	3.5 km	19:30	5:35	vff with 2kg load
6-Jan	3.5 km seletar	3.5 km	19:37	5:37	vff with mask
5-Jan	3.5 km seletar	3.5 km	17:04	4:53	vff