The QTE using the keyboard and mouse in this game are a real pain because of the lack of information given as to which key to press during or after the converging circles. Also I think the duration allowed for the key press is too short. I use an Xbox controller during the QTE's with better success in that the button to press is clearly shown and the time allowed to press seems to be more generous. For me to mash the S and D keys, which is generally the first required action at the start of each QTE needs me to use my two hands to get the necessary speed. During one of the QTE's the left mouse button has to be clicked which with the time allowed for the action can be awkward to achieve. Hopefully Crystal Dynamics will address this in future patches.