Gnumeric memory usage

I just realized that I was LXDE automatically starts gnumeric.

I am having one ODS file (2.1MB) opened and the memory usage is 1.839.020 K or 1.8 GB according to ksyguard :open_mouth: as opposed to 162.008 k that LO uses. I thought gnumeric was supposed to be saving ressources.

I get a similar result from ksysguard in LEAP but not in 13.2; top gives quite different results in LEAP from ksysguard - so I would assume the problem is with ksysguard.