Created attachment 156043 [details]
CPU eat

SUMMARY
kcalc in default window size blinking by "bit edit" field and eat 100% one core of CPU. I think it is somehow related to the scaling settings(150%). It is on x11 session. This version isn't first with this bug, at least 2-3 version ago I see that behavior. If resize window - kcalc is stop eat cpu and work fine until resize it to "default" window size.
Also, resizing of window is also behave not very well, see attachments.

STEPS TO REPRODUCE
1. Set 150% scale on X11
2. Open kcalc and setup as in picture(don't know if this matter)
3. Bit field is blinking and eat cpu

Operating System: Arch Linux
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.102.0
Qt Version: 5.15.8
Kernel Version: 6.1.9-zen1-1-zen (64-bit)
Graphics Platform: X11
Processors: 16 × 11th Gen Intel® Core™ i7-11700 @ 2.50GHz
Memory: 31.2 ГиБ of RAM
Graphics Processor: AMD Radeon RX 6800 XT
Manufacturer: ASUS