1GB ABR File Taking Forever to Load

Hello!

I recently had issues with an external hard drive that stored my original brush files, so I made an ABR file with all of my brushes and saved it on my computer's internal hard drive. I then had to reinstall Photoshop. Now, I am having extremely long load times and task manager shows Photoshop using less than 1% of CPU as I am trying to load the ABR file in. I don't have all the original brush files because of the external hard drive issue, so it's really important that I can get this ABR file in. I didn't realize that the ABR file was 1GB when I saved it, so I'm only now realizing that I probably should have split it into multiple saves. Is it possible that someone could split the file I have if I post it? Or give advice on how to get it to load into Photoshop as is? My Photoshop is fully updated and was reinstalled yesterday. I am using Windows 10 and put the ABR file in the Presets folder. Thank you!