copy-dir | Easy used 'copy-dir ' , copy a file or directory to anothor | File Utils library

I am using the code from the answer on this problem for asynchronous copy-directory for a few months now, but sometimes I need one or more subdirectories to be ignored. Is there an easy way by slightly modifying the code to do that?

I have tried to use Selective Directory Copying: SDC package from here, but it brakes when file or folder already exists.

This is the code I am using right now:

I have the following hard drive backup code that compares the .LastWriteTime() time of each file before copying and it is running slower than I expected. My assumption is that it should run pretty fast (on the order of a few minutes) if there are no files to update. I'm finding that it is still taking over an hour for 210 GB via USB3.0. I'm wondering if there are any unnecessary, time-consuming parts of my code that I can improve. I was also thinking about putting each directorycopy() call on a different thread (at least for the first level of directories, but was unsure if that was bad practice).

The code is mostly borrowed from:

https://docs.microsoft.com/en-us/dotnet/standard/io/how-to-copy-directories

I made changes to ignore the $Recycle Bin folder, log the files that have changed or had issues such as long filenames and being deliberate in how the Exceptions were handled. But most importantly, I added a check to see which file is newer before copying.

In linux I am able to sync files like this:

https://serverfault.com/questions/682708/copy-directory-structure-intact-to-aws-s3-bucket

Now on windows using c# this is how I upload a file:

I want to automate copying directory contents to another folder. I found this post (Copy directory contents into a directory with python) and would like to make it so that I can run a for loop. This is my code so far, however I am getting an error saying cannot copy tree because 'X' is not a directory where 'X' is the filepath of the directory I want to copy.

I tried running copy_tree once manually by simply copying the first value from my imported file list and it works. Where did I go wrong? Thanks.