I want to use the python sample "metavision_simple_recorder.py" to control the acquisition of event stream.The first problem is that when I want to use r to control the collection and stopping of event streams, I must ensure that the visualization interface of event frames is at the top of the window. The second problem is that when the target speed is too fast, the dragging phenomenon of event frames is severe. What collection parameters can reduce this phenomenon and how can interface functions be used to implement it.Here is the python script I used.And I use EVK5.