The problem is that AES-NI instructions have high throughput, but also high latency, 4 to 8 cycles. It also means that your hash is basically incompatible with

The problem is that AES-NI instructions have high throughput, but also high latency, 4 to 8 cycles. It also means that your hash is basically incompatible with any platform that does not implement AES-NI instructions, as it will be excruciatingly slow.