PowerPlay is just a thing in AMD cards which throttles them when in low-performance applications. It is also sometimes inaccurate when a high-performance application doesn't specifically ask for high-performance mode. It's completely safe to disable it, unless your GPU tends to get hot. If your GPU loads above 78 or idles above 45 (neither of which your GPU seems to do), do not disable power play.
To disable it, you really only have to enable unofficial overclocking in Afterburner (without PowerPlay support), and then change one of the clocks on your GPU. Unofficial overclocking's only dangerous if you don't overclock responsibly. All it does is allow Afterburner to access a feature of AMD GPUs which AMD does not support but has left in, which allows for a slightly more stable OC, better voltage control, and unlimited clock changes (of course, the lattermost doesn't mean that it increases your max stable). Note that reducing your clock by too much can, in fact, cause stability issues on some cards (my own is an example of such). And, also, the Afterburner betas and AMD driver betas have a few glitches that can work in tandem if you're not careful, and you can change your stock clock to your OC (though, it's unlikely, and I had to actually try doing this to get it to happen).
To disable it, you really only have to enable unofficial overclocking in Afterburner (without PowerPlay support), and then change one of the clocks on your GPU. Unofficial overclocking's only dangerous if you don't overclock responsibly. All it does is allow Afterburner to access a feature of AMD GPUs which AMD does not support but has left in, which allows for a slightly more stable OC, better voltage control, and unlimited clock changes (of course, the lattermost doesn't mean that it increases your max stable). Note that reducing your clock by too much can, in fact, cause stability issues on some cards (my own is an example of such). And, also, the Afterburner betas and AMD driver betas have a few glitches that can work in tandem if you're not careful, and you can change your stock clock to your OC (though, it's unlikely, and I had to actually try doing this to get it to happen).
in a perfect world we would all be piles of sand with no ability to form coherent bodies of body