I'm afraid that the only Mac manufactured in 2010 that would capable of running the Metal API is the Mac Pro in certain configurations. The other models started kicking in around 2012 or later.
This is the requirement that it would probably not be meeting; what has it got for a graphics card?
VIDEO: NVIDIA GeForce GTX 680, AMD Radeon RX 560, Intel Iris Plus Graphics 640 or better
Thus, unless I'm missing something, that Mac will not be able to run the new version of TS3 for Mac (once the issues are cleared and we can actually run it) and Bootcamp really remains the better choice for TS3.
