I really recommend you to stay away from Samsung devices if you want performance for emulators, I had both S10 Lite (SD855) and S20 FE (SD865) and they performed very badly running very demanding games on Dolphin and AetherSX2. For example, God of War II on AetherSX2 had similar performance for both S10 Lite and S20 FE, they throttled very quickly and droped my FPS to like 30-50 range. Poco X3 Pro (SD860) and Poco F3 (SD870) are the best value for money phones for emulation, even when my Poco F3 was stock I could play God of War II at full speed with no frame drops.
PC: AMD Ryzen 5 3600 / GTX 660 2GB / 16GB DDR4 3600MHz / Windows 10 Pro
Phones: Poco F3 8/256GB (Snapdragon 870 5G) and Redmi Note 6 Pro 4/64GB (Snapdragon 636)
Phones: Poco F3 8/256GB (Snapdragon 870 5G) and Redmi Note 6 Pro 4/64GB (Snapdragon 636)