The primary focus of this patch, then, was clearly performance.
The patched version now runs very close to its target 60fps in even the most demanding scenes, with v-sync engaged at all times. This level of performance exceeds both the original HD release and the original PlayStation 2 version, though cut-scene performance sees less of an increase, with the original version occasionally besting the updated release (at the expense of visual quality). One of the key changes implemented by HexaDrive to solve the performance problem is the utilisation of the PlayStation 3's SPUs to handle the workload previously designed for PlayStation 2's vector units. ZOE 2 pushed the PlayStation 2 to its limits and the RSX simply doesn't have the muscle on its own to power through it without help. HexaDrive balanced performance across the entire system, including the SPUs, in order to avoid bottlenecks,
resulting in a 10x increase in performance across the board.
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