You might try reseating the cooler. The idle and load temps are pretty hot. Depending what sort of ambient temps you have. If your ambient room temps are around 22-24c, the idle (if the cpu is truly at 0-1% and not 12-18% or more) is too high at 45-55c. Given the higher than usual idle and load temps I'm thinking your cooler isn't attached well.
If your ambient room temps are much higher like 30-35c then that could also account for the higher than normal temps. The solution there would either be air conditioning of some sort to bring room temps down or the use of a good aftermarket cooler.