Removing jagged edges on character models and kart chassis. 2. High-Definition Texture Packs
Mario Kart 8 Deluxe targets a locked 60 frames per second (fps) in single-player and two-player split-screen modes. When 12 players crowd the track online, a single dropped frame can ruin a drift line or cause a missed item box. Ver. 3.0.3 directly targets these micro-stutters, delivering the "extra quality" performance required for high-stakes time trials and online rooms. Booster Course Pass Polishing update mario kart 8 deluxe 303 extra quality
Here is a comparison of some of the most ambitious and high-quality mods currently available: Removing jagged edges on character models and kart chassis