In 2013 Overwolf did a pivot to build a framework. When did you last try it out? This is an example of the UX at the moment: https://www.youtube.com/watch?v=bDo78i6eYEE&feature=youtu.be
The assurance I can give is that we're a team of 70 gamers that care a ton about performance and quality. We've iterated on performance for years. Also, we are now developing a feature for creators on Overwolf, that monitors their CPU and GPU consumption, and gives them alerts if they cross thresholds. Curating apps created by 3rd party developers is hard, but we test every app before it's released. TL;DR - we're gamers, we understand and we care a lot about quality. BTW - last weekend I did my first chicken dinner on PUBG solo, recorded with an Overwolf app called Fuze: https://www.linkedin.com/feed/update/urn:li:activity:6679739940768661505/
You can't play PUBG with resource hogs.