If enzymes are used by all cells for all metabolic processes in different organisms, would you expect all enzymes to be efficient at the same temperature? why or why not?

No; enzymes in different organisms would have to be efficient at the optimal temperature for each organism.
For example, humans have an optimal body temperature of 37 °C, but the optimal body temperature for dogs is 38.3 °C and for most birds, it's 40 °C.

No because some enzymes can't function in low or high temps.