noticeable lag in ofGetMouseX()/ofGetMouseY()

Does anyone notice an abnormal amount of mouse lag with the following code.

void ofApp::setup(){
    ofSetFrameRate(60.0);
}
//--------------------------------------------------------------
void ofApp::draw(){
    ofCircle(ofGetMouseX(),ofGetMouseY(), 50);
}

I ran the same code in Cinder and Cocos2d,and those frameworks had a lot less lag. I had vsync on and set frame rate to 60. There seems to be a noticeable difference between openframeworks and other frameworks. Can you guys try with other frameworks, do you see a difference? Thanks. I also noticed running the OF version at the same time as the others slows down the other versions to OF speed. So could you guys test running the apps at the at different times as well as simultaneous?

Start by reproducing the issue with the provided ofApp::setup and draw example, testing with vsync and a 60 FPS limit. Compare mouse-to-circle responsiveness when openFrameworks runs alone and alongside Cinder or Cocos2d, then identify the relevant input or rendering path and document a repeatable fix or explanation.