Use the ones in your desktop Lr. For me Lr Mobile is for collecting images in the field, culling them, and maybe doing basic post processing when i want to show or share an image when I am in the field. It is only when you get the files back to your desktop Lr that you have access to a large calibrated screen, all of your presets, all of your plugins and Ps.
For me Lr Mobile 2.8 plus iPad Pro means not having to have an expensive MacBook in the field. The savings goes al lot way towards a 27" iMac on the desktop.