I have about/more than 400 GeoJSON layer files in my QGIS project. When I checked the task manager memory, it displays qgis.bin.exe *32 using about 1,334,000 of CPU memory. I had another version earlier which used shapefile instead of GeoJSON, and I remember the memory doesn't go beyond 1 million.
Will it be safer to use shapefiles instead of GeoJSON for all my layers?