I have to agree with two suggestions other people have already made.
First would be Windoze - almost any version. Even better, a regular and a ghost script (edited, stripped down version) version of Windoze 10 - lets see the amount of bloat Micro$oft has in their OS.
Corel Video Studio with something like 10 undo levels. When I had a 1 Mb DSL connection it was ok opening to the start screen, and going to a 1GB cable did not change that, seems as if it downloads it's marketing material in the background. The biggest influence that I noted in actually using the program was how many levels of undo I had selected - when you first start the first edit can be saved to RAM, after that you are writing to disk, and it has to manage that - what happens when you make your 11th edit, and you have 10 levels of undo selected, it now has to erase the 1st save, save the 11th, and update it's own working tables, etc. So opening a project with a lot of edits already made, and a good number of plug-ins, should tax the whole system, with a bit extra on the disks.
Not an app/program/software, yet an operating system - Gentoo. You custom build Linux for the hardware you are running - compile a new version for each change in the hardware.