I have a 34inch curved monitor, LS34A650UBNXGO. When I first purchased about 4 months ago, the USB dongle for my keyboard and mouse seemed to work fine. It has recently started lagging to the point that if I type anything, I can sit and wait for 5 or more seconds before any letters appear, if they do at all. The laptop is connected via the USB-C port for power.
Plugging the dongle into the laptop directly, works without issue.
I cannot seem to find any firmware updates for this monitor.
When I plug in another laptop, the keyboard and mouse are not even recognised.
