In personal benchmarks the Samsung media I use is always fastest, Samsung NVMe fastest, Samsung USB drives fastest, Samsung SD cards fastest. They just seem to have the market cornered on fast media. In fact their EVO Plus NVMe drives impressively kick the pants off anything except the new PCIe 4.0 stuff which is still very pricey.
One of the devs here told me that running from SD Card doesn’t make a huge difference over eMMC since once stuff is loaded the first time it runs from RAM after that. So you’re not going to get continually faster speeds, only when stuff loads the first time like on boot and the first time menus are pulled up.
Still it is nice to see less lag in load operations when running from eMMC. Though I use an N2 where eMMC is fully supported. In any case a faster SD Card will speed up the system when things have to load. Use an EVO Plus card and get the latest one with the highest speed rating (U3).