User didn’t describe the speed they were getting to quntify why it wasn’t acceptable to them.
They just stated it was slow and didn’t describe why.
And off hand I don’t recal if the old endpoint was quicker than what helix is, but I suspect it was around about the same time wise.
Additionally I suspect the new endpoint relies on the same internal service as the old endpoint, so there shouldn’t be a difference in quality/speed.
So in summary: I shared the times I observed, to compare to what OP observed (which they didn’t state what they observed) and shared this forum post in the TwitchDev Developer Discord to seek other opinions.
So what is extremely slow defined as?