Cruisin USA and World running slow

[Snakerake]

Hey All,

I'm currently working on a Racing Hyperspin cabinet for my sister and am currently trying to get things set up.

I've gotten Sega Model2 and 3 games running really well in their respective emulators, but I'm having trouble with Cruising USA and Cruising World in MAME. Both are reallllllly slow and I'm not sure if its the PC I'm using or if I should be trying a different emulator for these titles. 

I am using a refurbished HP Compaq Pro 6305 with a 3.4GHz Dual Core  AMD processor. 12GB of Memory (had 4GB, I installed 2 more 4GB chips) Running Win 10 Pro 64. I'm using MAME 179

Does anyone know anything about these titles?

Thanks!