Bug 491246

Created attachment 172264 [details]
problem

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SUMMARY
 Drawing is difficult because virtual input lags before start drawing. Pen is moving well but it takes a short time to "clicking" and start to drawing. Using mouse there is no lag, of course and using pen in smartphone there is no lag. For drawing and it understand to start to drawing a line, for example, it takes a half of second. it is not real time. 

STEPS TO REPRODUCE
1. samsung s23 ultra - or S20FE - install kde connect
2. configure and sync. select virtual input plugin
3. open a website like https://sketch.io/sketchpad/ or https://kleki.com/
4. draw something

OBSERVED RESULT
a point and empty space and then a line

EXPECTED RESULT
it must draw a line at same time I pressed spen

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)

Operating System: Fedora Linux 39
KDE Plasma Version: 5.27.11
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.12
Kernel Version: 6.8.6-200.fc39.x86_64 (64-bit)
Graphics Platform: offscreen
Processors: 16 × Intel® Core™ i9-9900 CPU @ 3.10GHz
Memory: 78.5 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 2060 SUPER/PCIe/SSE2

Linux/KDE Plasma: 
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION