World map as high-res image applied to plane as material?

I want to create world map type of interface where player is able to move camera around 2D map with high detail and resolution and select points/levels of interest to initiate combat.
What is best way to do it? I tried to import 8k resolution png image and apply it to plane as material. The resulting image is blurry, washed out and lost a lot of detail when compared to the original image.
I set everything to high, disabled compression etc. but it does nothing.

I am looking for world map similar to games such as Pathfinder Kingmaker. Help?

Check your import settings, they might be set to max out at 1k.

If it’s a 2D texture, make sure you’re using an unlit material.

Massive 8k textures often cause issues on mobile platforms, mostly because that represents 256 megabytes of RAM just to store one of those images.

A more common approach is to slice the texture into pieces and tile them together, initially by hand for early testing, then perhaps later you can write automatic tooling to take you from 8k images down to smaller tiles.

Thanks for the advice. Its just used in world map where nothing else really happens, just selecting levels and opening some other UI, levels are loaded as separate scene with normal sized textures