Obsidian docker is RAM intensive

I have installed obsidian docker on a rasp 4b with 4gb ram and it has installed perfectly well. But as soon as I start the obsidian in the browser the RAM usage shoots to 95% and after few minutes the device crashes due to no RAM availablity.

I do have a lots of extension installed on the vault, has anyone found a way to not make the system crash while using obsidian-docker