calabr

> То есть украинский пропадает после переключения языка -> Ru -> En? Да Вернее EN-RU, RU-EN Система на английском.

Yes it's 25K-100K strings of short moves. I get the same issue with GRBL in CHECK mode and with free running ( motors switched off, feed override 200% for stress-test.)...

Moving mouse over buttons on the main screan ( Unlock, Reset, Stop etc.) also give hauge lag in program streaming - looks like when button hint popping-up.

> Is this with _Agressive buffering_ and _Filter "ok" response_ checked in settings? Does it improve if you disable the text overlay? Can you post the file so I can...

switch-off ok-filtering seems to add some perfomance to text program display, not to much. Aggressive buffering where not active and not not supported for legacy GRBL, i mean. Playing with...

It's not used in ioSender - input buffer always 128b free irrelevant to buffer switch.

ru_RU updated for 2.0.36p13 [translation_ru-RU.txt](https://github.com/terjeio/ioSender/files/7637669/translation_ru-RU.txt)

ru-RU translation updated to ioSender Edge 2.0.38p1 Updated [translation-ru_RU.txt](https://github.com/terjeio/ioSender/files/8502246/translation-ru_RU.txt)

Updated to 2.0.38p [translation.txt](https://github.com/terjeio/ioSender/files/8711921/translation.txt) 3

Do you have any com port in the system when starting application? It's bug in software https://github.com/terjeio/ioSender/issues/149#issuecomment-965487685 which can correlate with yours.