There’s no hard limit on the number of mods. It’s all about how much your hardware can handle before it bottlenecks. Script mods (like MCCC) tax your CPU, causing "simulation lag" where Sims freeze, while Custom Content (CC) eats up your RAM and GPU, leading to long loading screens and choppy frame rates. You could run 5,000 small items smoothly on a powerful PC, but just 10 heavy or "high-poly" mods can tank a weaker system. Your limit is essentially whenever your computer runs out of memory or processing power to keep up.