Cracking performance lower than expected?

[MA40]

Hello.
 
HashCat always sends me this message:
 

Code:

Cracking performance lower than expected?                
* Update your backend API runtime / driver the right way: https://hashcat.net/faq/wrongdriver
* Create more work items to make use of your parallelization power: https://hashcat.net/faq/morework

 
Is this always done as a rule or is it that I have something wrong configured and I have to improve it?
 
All the best.