Intel Core i9-9900 is processor manufactured by Intel and launched in Q2 2019 . It's using FCLGA1151-2 socket. It has 8 cores and 16 threads with clock of 3.1 GHz that can turbo clock itself to 5 GHz . This processor is used in Desktop devices and can consume up to 65 watts of power .
NVIDIA Quadro M6000 is graphic card manufactured by NVIDIA and launched in Q1 2015 . It's using PCIe 3.0 x16 bus type. It has core clock of 988 MHz and 12288 MB (12GB) of memory . It supports DirectX 12 and OpenGL 4.5 . This graphic card is used in Workstation devices and can consume up to 250 watts of power .
This configuration has 0.2% of processor bottleneck . Everything less than 5% should not be concerned major bottleneck.
Processor bottleneck is worse, than graphic card bottleneck, because utilization of your processor will be on maximum and it will throttle other programs that are ran in background. Also you won't experience maximal performances that your graphic card offers.
You can resolve this by upgrading your processor or by downgrading your graphic card. Downgrading your graphic card doesn't make much sense and in that case is better to leave current graphic card in you computer.