I just came here to complain about this, I tried doing the Eternal Championship on the live game today and it seems unsoloable. In 6.0 It was difficult and took some time to learn the fights but it was doable, now my companion dies in like a minute and I'm screwed. The scaling on a lot of things needs to be fixed but this is one of the worst I've encountered so far.

I also have spectrum

Tried everything I could think of, verifying games files, restarted pc, restarted router, tried different characters, different locations all the same, big lag spikes everywhere. I tried another online game to see if it was me and that game was fine, it's just SWTOR. I was looking forward to playing today but it's just not fun with all the nasty lag spikes.