AnimusRex

I'm running Bigbox on this; https://www.amazon.ca/gp/product/B0BM9RWJDB/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1 And it's extremely laggy. Not sure if the hardware just isn't good enough? It's running any roms/isos pretty well up until PS2 era. I've tinkered with lots of the video settings (ie turning off anything I think would help, putting the quality down), and it's still very laggy just to scroll through, often taking seconds before anything populates. Anything I should check? Thanks