LibreELEC 12.2.1 on Raspberry Pi 4 B 4GB

Hi,
I was using LibreELEC 12.2.1 installed on a 4GB Raspberry Pi 4. I decided to switch my Tvheadend instance, which was running in a Docker container on a NAS over to the "Tvheadend Server 4.3" add-on. That’s when I realized that version 12.2.1 was consuming so much RAM that it would occasionally crash, unlike version 11.0.6, which uses hardly any resources. I’m wondering if this is normal behavior or if the issue is on my end bearing in mind that there is a fairly large media library involved.