Something nobody else touched on and in my opinion is the largest difference between 1/10 2wd and 1/8 is that the 1/8th car weighs 2.5 times as much as the electric buggy and has no drag brake. You will have to drive with this extra weight in mind. It's also common that you will let off halfway down a short straight and coast the rest of the way to a turn because the heavy car stores so much momentum that it can be hard to get rid of all that speed. You'll definitely learn to brake actively more.
Another misconception is that 1/8's are faster, they're not. Everything happens slower with the bigger cars, they build speed slower and lose speed slower too. It's much more of a realistic driving dynamic from electrics.