later mame versions have more sophisticated emulation which means the games that they have in common with the earlier cores will only ever run slower, and the newly supported games will likely be far too slow anyway. like say, the recommended cores are chosen because of good performance and because they're mature, feature-rich libretro cores. For example, does lr-mame2016 perform as well as say the default core? One quick question on the alternative mame cores.
With the hopes that later hardware upgrades or Pi versions might make them playable. Sounds like I should be able to at least get them to load if I match the right set+core. Said in How to Fill in the Gaps of Mame said in How to Fill in the Gaps of Mame 0.78?:
