How to change password length (min/max)

Hello, this is the first time I am using Hashcat so sorry if this ends up being a "noob" question. I got everything setup to try and crack an iTunes backup password and it is running, but very slowly. I used this guide to get the hash, and then followed this guide to get the command setup. Below you will see the command I used. I noticed that its set to try and crack passwords 0-256 char in length. I would like to change that to 8-14, alpha numeric without symbols. I have searched all over the web on how to change this, but can't seem to get the syntax right. I would really appreciate if someone could help me with this small part. Then I can try it again and hopefully it will reduce the amount of time (currently 7 years) down to something more reasonable like a few weeks.



Thanks for any help the community can provide!