At high pressure with low viscosity, rather than pressure. Make more fat droplets is interfering with the flow so it has higher viscosity. Therefore, the increase in pressure as a result of the increase in viscosity.
The pressure is more viscous at low pressure. Make more fat droplets obstruct the flow so the higher viscosity. Therefore, the increase of pressure, resulting in an increase in viscosity.
High pressure viscosity than low blood pressure. A drop more fat is interrupted flow and viscosity is higher. Therefore, the increase of pressure resulted in the increase of viscosity.