WPF + Delphi 2007 + Hydra DpiAware and the Fonts are blurred

I have a Delpi 2007 application which calls via Hydra a WPF app. That works perfectly. If I disable the DpiAware for the WPF program, the WPF surface is unsharp. Is there a way to get the WPF surface “sharp”. If I completely disable the DPIAware, the program can not be used on Laptops with Scaled Surfaces.