Server lagging

last 2 days the servers have been lagging really badly to almost unplayable i tried changeing from tx to d.c still same issue

It's because streamers are popularizing a mechanic where you spam creating new instances, and it's overloading the servers.

If you shift click to create a new instance, it will fix it. But you have to do it each time an instance lags out.

The lag seems to be instance-specific. Just in the last half hour:

Hideout: 19ms, no lag at all
Rupture: 44-3000ms and unplayable. 30 seconds to successfully exit.
Rupture (new waystone): 20ms, no lag at all
Vaal Ruins: 3000ms (entered from Rupture). Had to kill game.
Rupture (new waystone): 20ms, no lag at all
Fortress: 23ms, no lag at all
Ornate Chamber: 3000ms, rage quit for the night.