How to Secure Openwrt with Crowdsec

I want to setup Crowdsec firewall bouncer on my Archer A7v5 running Openwrt.
And for the main Crowdsec package, i will install it on a local server. But the detection is done by the main crowdsec package. So crowdsec will only detect intrusions on my main server based on the collections i have configured in it.
If i want network wide security via crowdsec, can i just pass my Openwrt syslog to an external syslog server setup on my server and setup the Syslog collection of Crowdsec there and do the detection that way? Will this be network wide security?

Also, how much resources will Crowdsec firewall bouncer consume on my Archer A7v5? Can it even run the bouncer?