Scale applied to CEP panel

Did you check the

window.__adobe_cep__.getScaleFactor()

Here's 2 functions in the csInerface

/**
* Retrieves the scale factor of screen.
* On Windows platform, the value of scale factor might be different from operating system's scale factor,
* since host application may use its self-defined scale factor.
*
* Since 4.2.0
*
* @return One of the following float number.
*      <ul>\n
*          <li> -1.0 when error occurs </li>\n
*          <li> 1.0 means normal screen </li>\n
*          <li> >1.0 means HiDPI screen </li>\n
*      </ul>\n
*/
CSInterface.prototype.getScaleFactor = function()
{
    return window.__adobe_cep__.getScaleFactor();
};
/**
* Set a handler to detect any changes of scale factor. This only works on Mac.
*
* Since 4.2.0
*
* @param handler  The function to be called when scale factor is changed.
*
*/
CSInterface.prototype.setScaleFactorChangedHandler = function(handler)
{
    window.__adobe_cep__.setScaleFactorChangedHandler(handler);
};

Scaling on Windows is really messed up on some of the apps PS2018 Ai2018

ID2018 seems to be ok.

If this solves your problem or you find another solution please post.