Elements core using 4.5 gb RAM

I have a new umbrel home and want to run a full bitcoin stack, I have noticed that elements core uses a massive 4.5 gigs of RAM after the ibd. Is this normal, if so I guess I will consider not running it.

Also can anyone help me with the differences between electrs, electrumx and fulcrum. I have read the sparrow wallet article and understand that fulcrum is generally the most performant but I have also read elsewhere that it is very prone to database corruption.

Look forward to gaining some valuable knowledge!