Wow. I have had no such issues with speed or feature set. I have been more than pleased with the frequency of the updates and the new functionality introduced with each new version.
Perhaps your workflow is very specialized, but we find that most of our time is spent with Adobe apps, and have not yet seen anything that could even come close to doing the same work. We try new apps as they come out… Pixelmator, Sketch, etc. They’re lightweight, and very good at some things, but they also leave some very large gaps.
I hope you find what you’re looking for. All the best to you.