There is a dedicated fan project called the "CTR PC Port," which is a "from the ground up" recreation of the original 1999 PlayStation game for modern PCs. While it isn't the Nitro-Fueled remake, it allows for high-resolution, high-framerate classic racing. Core Features of Nitro-Fueled
High-end PCs can run the game at 4K resolution and 60 FPS using fan-made mods, which actually surpasses the original console performance.
The team had limited resources and felt their primary audience was concentrated on consoles.
If you decide to play on the intended hardware, you can find the game at several retailers: Go to product viewer dialog for this item. Crash Team Racing NitroFueled Digital Standard Edition
Some speculate that maintaining the game's "live service" model (The Pit Stop and Grand Prix events) on a new platform wasn't financially viable for Activision at the time. How to play Crash Team Racing Nitro-Fueled on PC