How hyperkalemia increases rate of repolarization in cardiac myocytes?

How hyperkalemia increases rate of repolarization in cardiac myocytes ?

the early effect of mild hyperkalemia on myocyte function is to increase myocyte excitability by shifting the resting membrane potential to a less negative value and thus closer to threshold potential; but as potassium levels continue to rise, myocyte depression occurs and Vmax continues to decrease.

this is about depolarization but i m here asking about repolarization?

I still didn’t understand how the two are related to eachother?