@boxboy83 A few more thoughts FWIW: I don't know what Focal recommends for positioning those speakers. However, I think positioning them (system too? - same cable lengths?) at the long wall was definitely a good decision in a room with those dimensions. I'm not familiar with your amp but I am familiar with your TT & cart (on my short list when I bought my new TT). I sincerely doubt the weak link you're looking for is system or component related, especially since you thought everything sounded good at your previous abode. Rega is a proponent of low mass design. As such, more than most other TTs in that class/price point, they need rock solid support. Hopefully, your rack or whatever you have your components on provides that support. Is the fidelity shortfall across the board or just related to vinyl? If vinyl only, then I would ask myself how much mileage does the Exact cart have on it? Are your records clean? Do you use stylus cleaner? Have you checked TT calibration settings since your last move? A well-maintained Exact cart in a well-maintained system using clean vinyl should provide at least 500 hours of solid play.
What kind of AudioQuest speaker cables and other interconnects are you using? Any chance any of them got squashed or seriously compressed when you were moving? If so, you might want to check continuity. Last thought, what kind of connectors are you using with the speakers? Banana plugs? Spades? Might want to check those, as well.
Good Luck!