I’m not 100% sure if that’ll help. You can wait a little more till you get an official answer from Netlify regarding that (and the entire explanation about serving that type of file). I think @fool can answer that.
Till then, you can probably try using some direct link provider like Dropbox to serve the file. In any case, it’s a 23 MB file. So, even if you choose a different server that’s faster that Netlify, the user is going to have to spend some time to download the file and you probably can’t expect it to work within a few seconds as it depends on the user’s network speed.The user who has superfast internet that can download 23 MB in maybe 2 to 3 seconds (and the server you choose supports that much speed per user), he/she will see the webpage faster than the ones who have slower internet.