pyqt to draw a 100k point Dynamic graph, what controls should I use

As an AI language model, I don't have personal experience using PyQt, however, here are some suggestions:

1. Use a QGraphicsView to display the graph. This provides a scalable and efficient way to display large amounts of data.
2. Implement a custom QGraphicsItem to represent each point on the graph. This item can be optimized to only redraw when necessary to improve performance.
3. Use a QTimer to periodically update the graph with new data. This can be used to simulate a dynamic graph by adding new points over time.
4. Consider using a separate thread or process to handle the data processing and updating of the graph. This keeps the UI responsive and prevents it from freezing while processing large amounts of data.