If I have Office stuff open and the whole system crawls, then the system isn’t snappy. It’s like the claim is “get a Mac and you’ll never see a slow down ever

If I have Office stuff open and the whole system crawls, then the system isn’t snappy. It’s like the claim is “get a Mac and you’ll never see a slow down ever again! Just as long as you run software that won’t make the whole system come to a crawl”