Parallel EVM

Parallel EVM is a way of making the Ethereum network faster and more efficient by running multiple transactions at the same time. 

To explain parallel EVM in a simple way, imagine you got some work to do, (example - cooking something for your party). So, you called your friend split the work, person A will go to market and bring stuff, Person B will Arrange the utensils & other stuff, Person C will cut the veggies and stuff and Person D will cook. So rather depending on one person the work is being split among 4 person and that reduce the time and bring efficiency.