I have odoo SH V16 enterprise , my business is supermarket retails , In my database there are more than 20,000 products. when I start POS it loads very slowly during product load, after some time it crash and give hanging especially when i scan more then 20 items per order ,

Is there any solution ?
I can not believe system as odoo and in Odoo server sh have this low performance in pos.

Is there any solution for this problem ?