Delay in opening the application by touch

I have several text fields. The touch event is set to launch the application in one field and links to calendar events in the other two.The first launch of the application after unlocking or clearing all background applications is triggered at normal speed, but the following start with a delay of 2 to 10 seconds after the tactile feedback (vibration). Is this a bug, or it is how it is?

I am runnin KLWP on Xiaomi A1 (Android One program), Android 7.1.2

Default and only launcher is Launcher3 (Google Now i presume).