This is the killer feature. NSP users complain of "hitching" every time they enter a new region. That is the Switch building a shader cache on the fly. The official eShop update pre-caches these assets. The result? You can ride from McFarlane’s Ranch to Escalera without a single freeze.
Deciding between the eShop version or a physical NSP/cartridge depends on your priority for speed versus ownership. red dead redemption switch nsp update eshop better