Early 2013 retina macbook pro bluetooth issues (buggy, cuts in/out)

#1
My early 2013 retina macbook pro has bluetooth issues. It's buggy, cuts in/out.

When I'm using my bluetooth mouse, it stops moving every 2-3 seconds. It's choppy when listening to audio, it cuts in and out.

I've tried everything software related; resetting PRAM/SMC, resetting bluetooth module, executing various terminal commands...

Any of these fixes that work, work for about 1 day or less, then the problem resumes.

Any advice? Do you think if I replace/upgrade the airport card to this one, it might fix the problem?

https://www.amazon.com/Eathtek-BCM9...00YRU10JY/ref=cm_cr_arp_d_product_top?ie=UTF8

I've hard many people have bluetooth quality issues with macbook pros from around this time.

Any advice would be appreciated!

Cheers
 
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