I would like to know how to display more than 100 000 geometries on Geometry Viewer (I'm using PgAdmin 4 & PostgreSQL 9.6).

I have already tried this, which gives the advice to create a config_local.py file and to increase the number of the variable ON_DEMAND_RECORD_COUNT.
I need to display more than 450 000 geometries and have tried to increase the value of ON_DEMAND_RECORD_COUNT to 500 000, which causes PgAdmin to freeze.
Thank you in advance.