Well, yeah, that's just it, isn't it? If you're a proper gamer, an avid FCP X and CS6 user, then there isn't actually a computer out there that fits your criteria of reasonable performance in this form factor.Yeah, I want the form factor but reasonable power\performance.
Just like @sickb0y in the other thread, you seem to want a Mac Pro killer in a size 1 dress. It just isn't there yet, and you seem angry about that. But you know as well as I do that it isn't the rMB's fault. Its a Broadwell Core M in a fanless enclosure, let's get real, its not like it is hiding what it is.
In all honesty, if I felt like you do and was in your exact situation, I would sell it, get a 2015 13" rMBP. and plan to keep it only long enough to see what 2016 brings to the Macbook lineup. You may like what you see in the anticipated redesign of the MBP line. May be just the combination of form factor and performance you are looking for.