currently I am using a mid-2012 macbook pro 13-inch. been using this for 6 years for about 13-15 hours every day. I use it for everything (photo & video editing, music production). it's really reliable but now I think I want something faster and lighter. also, battery condition says "replace now". so i'm looking to upgrade, and want something as reliable as this. I'm thinking of getting the new macbook pro 2019 with 1.4ghz clockspeed because it's cheaper than the rest. I will only use it for music production -- logic pro x, and A LOT of vsts & plugins (no more video editing) will this be a good choice? or the 2.4ghz will be worth the additional costs?