Your dad is hard of hearing, causing you having to repeat what you say, and even then the dialog could still end up being garbled. Lets use an analogy to see what the problem is.
While RAM is important its not what slows the boot up! Drive I/O is. You are limited to either what Apple contracted from Samsung or what OWC offers. Well that explains things! You can't use the M.2 SSD in this system.
