Memory leak?

Debian Testing (updated today)
The newest version of elements - 0.18.1.9

I am not an expert on C++, but I think Elementsd has a problem, and he is still taking care of SWAP and RAM.

Here we have data from the synchronised Liquid node. I have set up a 2GB ZRAM and Liquid has taken virtually the whole for itself. Below the java (RSK node) and Bitcoin, which at Elements are really huge!

It seems to me that Elements shouldn't take so many resources for itself.

```
elementsd 1787508 kB
java 143848 kB
bitcoind 140728 kB
unattended-upgr 6124 kB
tor 4748 kB
fail2ban-server 3464 kB
```

```
for file in /proc/*/status ; do awk '/VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file; done | sort -k 2 -n -r | less
```