Not sure what your issue is with me, that’s not how the thread unfolded. The dev made a clarifying comment about what the issue is with the HD3000 and people read into it something that wasn’t there and assumed that they said that they were working on a fix, which they never said. If they felt misled it’s because they were eager for a fix to the issue which wasn’t going to happen. The dev never said they were going to fix the issue.
As far as UE4 performance is concerned, I think one of the biggest issues with the engine is getting the graphics configured for low-end systems. It starts out with a lot of features turned up, and many of the settings that affect performance are in different places which can be difficult to discover and others are in config files that aren’t exposed to the editor. Unity starts with very little, which means you pretty much start at the bottom and build up and makes it much easier to control the graphics performance. It’s very difficult for developers outside of AAA studios to be able to get as much performance in their games.