Hello there,
Open Remote Desktop Connection Manager
Right Click "Root" > Properties > Remote Desktop Settings
Uncheck "Inherit from parent"
Change Color Depth to 32
Remote Desktop Size: Change to "Same as client area"
OK
Back to RDCMan Main Window > Save All Settings
Similar discussion here https://social.technet.microsoft.com/Forums/en-US/7398bad1-b653-401c-933e-68013509afd2/remote-desktop-fonts-are-blurry-help?forum=win10itprogeneral
Hope this resolves your Query !!
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