OPNSense automatically creates routing loop

[Niami]

I have a setup with a tplink router as my main router and an opnsense router for my homelab, I'm still learning opnsense and I don't want to break the whole network with my tinkering.

In the tplink router I have a static route set to the opnsense router which works without issue.

The issue is that OPNSense automatically creates routes which cause a routing loop. E.g. There is a machine on a VLAN downstream of the opnsense router, however opnsense keeps making a route for that specific IP which routers back to the tplink router.

Can I stop opnsense from making this particular route?