[Qt-creator] QtCreator 15RC1: Extremely slow Compile Output

[Andrzej Telszewski]

Hello,

it used to work just fine in QtC 14, but is not in QtC 15RC1.

The _Compile Output_ is _extremely_ slow.

E.g. when using `st-util` to flash a microcontroller, the flashing takes 
something like 10 seconds,
but the _Compile Output_ takes something like ~ 1 minute to show that 
the command completed.
FYI, `st-util`, while doing it's job, is showing its progress _on the 
same line_.

I also noticed that the output is slower when showing messages from 
building projects.

Is it only me?

--
Best regards,
Andrzej Telszewski