A faster pc will make Microsoft Access database application run faster. The desk top PC we recommend: 1 gig of ram, 1.5 gigahertz processor, and the fastest hard drive you can find. For a server PC: 2-4 gigs of ram, 3.0 gigahertz processor, and multiple fast hard drives; one of which is dedicated to the back end database. Some PC sellers sell fast processors with little memory and the slowest/cheapest hard drive they can find, so be careful and be sure you know what you are purchasing.
However, these days migrating the MS Access system to the cloud (AWS or Azure) ensures you can always extend the MS Access system – both from a hardware and processing prospective and also from the number of users on the system prospective.