Enabling or disabling byte and / or word swap in the driver itself should only be done if your BasicLabel displays incorrect values (which don't match what's in the PLC).
I think that there should be only 1 correct combination that produces correct values (not a 100% sure about this).
Also, check the following topic about formatting the text in the BasicLabel:
https://www.advancedhmi.com/forum/index.php?topic=2490.0