If I were to buy an expired domain that was linked to a site that used to be in another country, would it do poorly in a google search? Example: The domains old website language appears to be in Spanish and I would be looking for US traffic with the new website.
Google is pretty smart and they respond to site changes pretty quickly, so as long as you have English content it should do fine if all other SEO factors are taken into account.
One thing to consider is the backlink profile. If it has lots of Spanish sites linking to it, Google will know that and you would have to build new (relevant) links that outnumber those to rank for what the new site is about.