I am experimenting with VSCode to edit a python program I have.  It is about 3000 lines long.  I have loaded Microsoft's Python extension for VSCode. Most things work well -- linting, etc.
However, when I use F12 to jump to a definition of function or method, it can take 10 or 15 seconds to complete.  Finding the usages of a function is (usually and surprisingly) must faster.  All symbols I am searching for are in this same file.
Do others have this problem?  I don't think it is my machine's limitations, because I've been using VSCode with TypeScript for 6 months, and in that environment, which included 1000s of files, jumping to definitions was always very fast.
Thanks.
Vic
Really this should go onto the github issue tracker for the extension. not here
VSCode and Python extension: Navigating to symbols is very very slow