Hello, I'm independent advisor A&K. I'm glad to be able to help you.
Hello, I'm afraid that's because there are many large files in this directory. Your computer needs a period of time to sort them. In fact, the same thing is happening in other directories, but the process is so fast that you can't obviously feel it.
Trying to increase your virtual memory may work to some extent.
I will keep to follow up until the problem is solved. My English is not good. If you don't understand my words, please let me know.