It's basically a port of the mobile version, much like Final Fantasy 3-6 on the PC. So it has the obnoxiously large buttons/menus for everything that I absolutely abhor. They've always tended to run just fine though. There also don't seem to be any noticeable screw ups like they had with 5 & 6's mobile version that was ported and not fixed. I label it as a lazy cash grab port.
The article linked by elessar does mention a mod to speed up battles which is probably nice. Although you could also likely do the same using CheatEngine and making a toggle button for increased speed. Plus you have other mods/patches like the Field Patch, but it's not perfect either. Then you have this as an alternative I believe.