Lag even if low quality

[El Davidsones]

I have a simple problem. When I want to play my video, it lags like there's no tomorrow. I tried to fix this with several tutorials and research I made. I didn't find the solution. 
So the problem is that the video stutters and drops about 6 frames and it's pretty weird.. it goes back and forth and so on. I tried low quality, allocating more memory, creating proxies and even reinserting my pc components. I have 16 GB RAM 4 TB Hardware and 500 GB SSD wich should be good for Premiere Pro but... well.. the lag. 
I had a laptop that I used to edit on. And that worked just fine. But now, when I look at my pc, I see this annoying lag that annoys me.

Here's an example:

https://youtu.be/KwR96U2W5ao 

Please reply if you know the answer.

[basil1891 · Accepted solution]

Things to try/check

1) Edit > Preferences > Audio Hardware > Default Input => select "No Input"

2) Clear media cache manually. Close Adobe PP/AME/AE, goto cache location and delete folders:

Media Cache, Media Cache Files, PTX, Peak Files.

By default cache path is, on Windows: %USERPROFILE%\AppData\Roaming\Adobe\Common
on Mac: Users/(Your user name)/Library/Application Support/Adobe/Common

3) Reset workspace: Window > Workspaces > Reset to saved layout
4) Toggle off  "Mercury Transmit" option (Preferences > Playback > Enable Mercury Transmit)

[El Davidsones]

Thank you so much! It works! Well I didn't know that having your microphone on would cause massive lag. But thank you 🙂