Factorio Forums

24 seconds video that explain everything (look at the fps) :

https://drive.google.com/file/d/1Fs9Qe1 ... sp=sharing

When chests are full, bots are waiting and fps drop a lot.
I think it is related to cpu : if bots are not on screen : the same, if game.speed is reduced even if bots are on screen : fps ok.

Save here :
https://drive.google.com/open?id=1GjK3e ... khCRBrTZEV

Thanks for the report. This isn't so much a bug as an area that could be optimized.

Robots are currently optimized for the case where they can always do what they want to do. When you run out of space for them to put items it causes this.

For now: just don't run out of space. I'll look into the performance at some future point.

Yes, it's more a problem than an bug.
And i agree, it's not gamebreaking at all, it was just to let you know in case you didn't.