RE: Solutions to SDL_MIXER CPU requirements

Firstly let me state clearly that by "slower computers" I am referring to computers with 100 to ~500mhz cpus, my "old laptop" is a very slow 100mhz machine with 64MB ram running Windows ME!

I have investigated this problem further and tried various changes to improve performance. Reducing the number of channels helped, but there were other significant SDL_MIXER thread related factors influencing performance. Even by changing the selected audio format to my system's default (and some smaller ones) did not help at all. The only solution to these problems is to not call the initialization of SDL_MIXER called openaudio(...) unless its services are required. The good news is this is easy to do and will be invisible to the QB64 user.

This will require a qbx.cpp file patch which I will distribute asap.