nections, the parameters must be of types that are known to Qt's meta-object system, because Qt needs to copy the arguments to store them in an event behind the scenes.
Call qRegisterMetaType() to register the data type before you establish the connectio
@Buttink If anyone comes across this problem. Apparently, the QLoggingCategory or the stderr/windows debugger are SUPER slow on windows. To fix this I used qInstallMessageHandler and wrote my own handler to not send to the terminal for windows. Now, my application runs just fine.