I am on Windows 10 64 bits, and visual studio 2019. Cuda 11.1.
Just installing visual studio, this one goes perfectly.
When I install the integration with VS2019 that comes with the CUDA toolkit (https://developer.nvidia.com/cuda-downloads), the VS2019 starts to go very slow or directly the menu buttons (such as the create project) simply do not work. It seems as if VS2019 had a hard time connecting to the internet, because it is impossible to also add an extension.
In short, leaves it useless.