Latest macbook pro & looking glass

Hi,
I currently own an under powered HP Envy laptop, which does work with my standard Looking Glass display, albeit with usually slow frame rates.
I am now however wanting to buy one of the latest 15 inch MacBook Pro variants. Can anyone tell me if the LG display works at a usable frame rate with the latest MacBook Pro and if it does what specifications should I go for. Do I need to get the highest specs for Ram, GPU, SSD storage etc., or will the LG work well with some of the less expensive options?
I don’t want to go ahead and purchase the most expensive MacBook Pro if a less expensive variant works well.
In a nutshell, can anyone tell me how well the LG works with the various MacBook Pro variants?
Many thanks,
Michael