How to stop/kill background tasks in Pycharm

Go to Project panel and exclude folders from update indexing.

How to use offline maps in QGIS #QGIS

Other option

Example via XYZ tiles connection

file:///C:/Users/USER/Desktop/OfflineMaps/Cyprus/{z}/{x}/{y}.png

Example with code

url = 'type=xyz&url=file:///C:/Users/USER/Desktop/OfflineMaps/Cyprus/%7Bz%7D/%7Bx%7D/%7By%7D.png&zmax=10&zmin=0'
layer = QgsRasterLayer(url, "CyprusOffline_python", 'wms')
QgsProject.instance().addMapLayer(layer)