Thank you for this tool, I just started fiddling with it, and it seems nice

For my needs, I would like to create multiple sizes of the same picture of my photo album. For this, I am using multiple commands of "resize -ratio".
(FWIW I am using the Windows x64 version)
But this is clearly unoptimized, as it will load the source image (which is BIG, like 5MB) every time, which means 5 events (as I have 6 thumbnails) of useless loading of this huge file, resulting in like 2 seconds of computation to create these thumbnails whereas I guess it would take 500ms if the source image was to be only loaded once.
I could configure my phone to take lower-res photos, but it bothers me, because I prefer to have the best possible quality for my source photos.
It would be way more optimized/fast to load the image once, and then execute multiple actions on it.
For me it would be multiple resizes of different sizes, but one could think of so many use cases, like crop then resize then black and white then... For example I could be wanting to create a sepia version of the source photo to create a "old timer" album of sorts.
I don't quite mind if it's not there, because I don't have such "speed" requirements, but I still think it would make a great addition to the tool!
Is it planned to add such a feature?
Best,