You say tearing. Have you tried enabling Vsync? Are you using an SSD for these games? Are you using one cable from the PSU to plug in the GPU or two? Ark: Survival Ascended is a mess. I played on my 7900 XT and even then it doesn't run well. Forza Horizon 5 runs well on every system I tested it on, GTX 1060 6GB, RX 5600 XT, RX 6800 XT, and RX 7900 XT. Do you have SAM enabled?
Ryzen 7 7700X, MSI MAG X670E Tomahawk Wifi, Corsair DOMINATOR® TITANIUM RGB 2x16GB DDR5 DRAM 6000MT/s CL30, Sapphire Pulse AMD Radeon RX 7900 XTX, Corsair HX Series™ HX1000, Corsair MP600 PRO NH 4TB