Well, that is true. If you divide down the CPU Sys CLlck with the config settings you must reduce the clock speed accordingly.
1. USB Clock Select = Full-Speed USB Clock Source Selection
2. CPU Sys Clk Select = CPU System Clock Postscaler
3. OSC Select = 96MHz PLL Prescaler
4. Oscilator = Oscillator Selection bits
1. USB Clock Select = Full-Speed USB Clock Source Selection
2. CPU Sys Clk Select = CPU System Clock Postscaler
3. OSC Select = 96MHz PLL Prescaler
4. Oscilator = Oscillator Selection bits