avoid indexing a folder

There is a symbolic link “data” in the project directory. The source folder are on the HDD and have a size of 1TB. Every time I open PyCharm, it takes a lot of time to load this folder, and once I modify it, it takes more time to load the changes.
Although I have excluded this folder in the settings, it has not worked

how can I completely prohibit loading this folder in the project, without indexing or loading any changes