How to decrease RAM usage?

[Hielobro]

Hello! I use docker container with a long running python script, where i restart chrome with sb each hour (it doesnt matter if it use pure cdp or plain sb). I know, that i close browser properly with sb.driver.quit because cpu usage spikes down. But i see that ram used by script slowly rising up. What can i do to prevent that? i know that it happens because of multiple browser restarts. Could anyone give me any advice?
I know that you advice not to use it in container, but i have no other options, and i dont think that it is because of that.
I also see in resources usage, that when chrome starts and closes, ram usage spikes. But it looks like ram does not go down completely to the point it was before starting chrome