Originally Posted by soundtaxi.

Dear Valued Customer,

Thank you for contacting SoundTaxi Support team.

What kind of files are you converting?
What is you CPU usage during conversion?
Please open your Windows Task Manager and check CPU usage level during conversion.

Please close all unnecessary applications on your PC and start the conversion again.

Please let me know the results

Best regards,
Natalie
SoundTaxi Support Team