Well, just loading 120MB executable from an SD card to run it would take 6s in ideal case on the tablet that I use, before it even gets to execution. That's 10s

Well, just loading 120MB executable from an SD card to run it would take 6s in ideal case on the tablet that I use, before it even gets to execution. That's 10s+ startup times for Electron app. Meanwhile my 2MB static C app starts in fractions of a second right after boot. Storage space is not the only consideration. Storage speed may also be limited.