Macbook Pro, Retina late 2013, 13inch, Short Freezes

Hi

I have a MBP Retina 13inch, Late 2013, 10.14.1 installed. Since i've updated to High Sierra or Sierra, i get constantly some short freezes. This happens mostly while im typing any text. The keyboard and trackpad doesn't react for about five seconds. During this time i can continue to type on my keyboards, the letters appear after 5to10 seconds. I would like to know, if this problem is related to hardware issues or to software. And if there is any way to overcome this annoying problem.

I'm happy for any help.

Thanks