QT Charts - Delete Locks MainThread ~O(n^2) Proportional to # of Series

Calling Delete/DeleteLater on QChart Calls RemoveAllSeries(), which loops RemoveSeries(). This calls additional functions for each series removed during delete such as update(), which locks the main GUI thread, proportional to # of series that were plotted. This causes the application to hang.

From Testing (Natively in Windows):

12k Series -> ~30sec removeAll threadlock

9.3k Series -> ~19sec removeAll threadlock

7.8k Series -> ~12.7sec removeAll threadlock

4.8k Series -> ~4.8sec removeAll threadlock

1.24k Series -> ~0.39sec removeAll threadlock

0.735k Series -> ~0.045s removeAll threadlock

See: QT Forum - Deleting QChart Causes Application Hang