You should consider CodeRush from DevExpress. They've always been super serious about performance (they have perf stats on their site). They've had C++ tooling

You should consider CodeRush from DevExpress. They've always been super serious about performance (they have perf stats on their site). They've had C++ tooling for years, their UI is top notch and their live templates blow R# out of the water. I'm not affiliated with them in anyway, but I am a huge fan.