To adjust the localization thread which determines the number of concurrent jobs in Premiere, please follow the below steps.
1) Close all active instances of Premiere.
2) Go to the following location:
3) Open the eMAMConfig.json file with a text editor.
4) Find the value of "localizationThread". Here it is 5. Change it to 1 or 2.
5) Save the file.
6) Open Premiere.