SSE CPU support.

[RetroSoftwareRepository]

I'm writing this issue asking about an SSE only version like what was done for New Moon. Will you be willing to compile it for SSE only CPUs like the Pentium 2 and Pentium 3?

Currently speaking these forks have one problem: they're RAM hungry.

There's hardly anything left that'll work on some of these older systems in terms of browsers.

The last version of Firefox that supported SSE was 45 ESR and 48.

Likewise the last version of Chrome to support SSE was 34