At what height are you considering?
Tropical Storm systems are primarily a low level phenomena other than the convective weather that exists. At high level, avoidance of the convective weather gives a reasonable transit. Routinely flightpaths for jet transports will pass over a storm system. Weather avoidance increases track miles flown so affects fuel and time for the transit. Turbulence is mainly associated with the convective weather. Next storm of note, go and look at windy.com, and look at the difference in vectors for sea level, and higher altitudes. Right now there is a storm developing just west of the cape verde islands that shows the change with altitude clearly.