I don't know what to do with this problem, i had the same issue on Windows 10 Enterprise x64, i always update drivers, directx, vcredists, etc to newest versions, so it's not possible that something is outdated.
Im using SoulseekQt build 2016.4.24
My PC specs:
Windows 7 Ultimate x64
Intel Core i7 2600k overclocked to 4,5 GHz
Kingston HyperX Blue 8GB RAM DDR3 1600 Mhz
Nvidia Geforce GTX 980