POE1 launch makes POE2 unplayable

Lag spikes have gotten out of control and have made POE2 completely unplayable for me today.

I had no issues with these prior to yesterday (launch of POE1 3.27).

I'm sure there's some back-end stuff shared, but this is untenable. If one game's launch makes the other game unplayable it's just more evidence GGG is incapable of managing two games at the same time.