Dialog box Ui loading Slow in Qt C++

[prasad15]

I"m just calling dialog box screen on released() event and some data is loading into the Text label of the dialog box, but when i released the button, the UI ie. Dialog Box loading slow, like first it show the blank Black dialog box and then other elements are loading.

[CPPUIX]

@prasad15

• What and how much data is being loaded onto the text label?
• What other elements are in your UI?
• Does this happen if you load an empty dialog?