I tell you, 80% of my past problems where comming from the computer. Wrong audio driver, wrong video drivers (yes it can make a difference) chipset and sata controler are very critical.
Then audio drivers and ajustments are the most common problems happening. Did you check the audio settings
How to set up Audacity – Audacity Manual, check different audio drivers MME, WDM, Asio..
I don’t use Audacity.. but there must be a place where you setup the sample rate and buffers..
Now time to throw us some specs.. laptop ... Read even more