At the moment, with our app Ali Orders, you can simply use the function Bulk Action to import reviews for your products without doing it manually.
Go to Ali Orders > Product list > Click on "Import All Products"
Then you can simply choose 2 options which we have listed on the screenshot which is "Import reviews for no review products only" and "All Product Pages"
Then click on "Import Reviews" and wait for the process to be finished.
And wait for it to be finished.
If you need further help, please let me know.