1:8 ratio not working

When i go through my spawn portal, everything is fine, the trip to nether and overworld is ok but super lagging in the nether for like 5 seconds. BUT when i go 100 blocks away and go through my other portal , it just takes me to the same co-ords as the nether, spawns me in the overworld, without the portal.

Below is a picture of the spawned area (exact co-ords.)