As I learn about digital signal processing, I'm motivated to use the knowledge for some interesting applications. To do this, I often need to find software that does what I need. The problem, though, is that a lot of the software I've found either has a very limited feature set, is deprecated, or simply doesn't reliably build or run on my machine. That's not to mention that the vast majority of signal processing software is written in C and C++, which makes them harder to read and modify than I'd like.
GNURadio, for example, doesn't reliably function on my machine, and its core is written in C, so it becomes difficult for me to modify some of the code to run better for me. Direwolf and other smaller projects either have obscure documentation or don't have features I'd like for some projects.
What about performance?