Once of the easiest ways to speed up finding your scattered Lumi files is to merge your Downloads and Documents folders into your Desktop folder. That means any files that go into any of those three will then show up on your desktop.
As a note, I highly recommend making a separate windows user for running this game, as these changes will make a daily-use account very messy. And a second note, this guide doesn't cover optimizing the K-Lev file search. I'll make a separate guide for that, as it's a very different process.
This effects: 1) The second file of the game, which normally shows up in Documents. 2) Lumi's website, which normally appears in Downloads. To make the downloaded file appear on your desktop as well, you'll likely need to change your browser settings.
First, locate your windows folders in quick access on your Home tab. My Downloads and Documents folders aren't here as I've already merged them.
Next, right-click on the folder you want to move (Documents or Downloads. Again, mine says Desktop because that's what I have left) and then go to the Location tab, then click move. In the window that pops up, navigate to your desktop folder, and then click Select Folder. Click Apply, and you'll receive two popups. One asking if you want to move all files to the new location. It's up to you, as for the game it doesn't really matter. The other is a warning, letting you know that you're merging two windows folders. This is good, as it's exactly what you want.
All you have to do now is repeat for the second folder i.e. Downloads if you already merged Documents.
I mentioned that you might also want to change your browser settings for downloads. To do this, open your browser and click the 3 lines at the top right. Open your setting, then look for a downloads tab on the left. You should then find an option to change the location for new downloads. Here, go ahead and redirect it to your Desktop, and you should be good for these files!