Temporary freeze during publishing status - ofxTwitter, ofxOAuth

Hello!
I am using an app which is supposed to upload on my Twitter account a screengrab of the app.
The app works fine the only problem I have is that every time I upload the image, the video freezes for the time of the upload.
I thought it was the cout message that was taking resources so I disabled with ofSetLogLevel(OF_LOG_SILENT);

however I still got some message from ofxOAuth

CURLOPT_CAINFO: ../../../data/cacert.pem
IN MEMORY CALLBACK
ptr: 0x345876e4
size: 1
nmemb: 3562
data: 0xbfffc828
----
ptr: 0x345876e4
size: 1
nmemb: 3562
data: 0xbfffc828
realsize: 3562

I tried to mute them but there's still some freezing time.
(It is definitely not the image grab and save that creates the lag)

Any idea anyone?

cheers