Hi @Lucian_Dinu I tried you --spacer-height fix applied on the element ID, and it fixed the no. 6 (Content reflow) from here: Performance issues. It is a hotfix applied to one element. There should be another way to do it, as it is not possible to do a hotfix for each website page, instead of fixing the root value.
And you can see in this video that this hotfix has no impact on the cookie bar reflow. Please note that the network is throttled at Slow 3G for the demo purpose.
@Andre, @Martin, @malte any developer advice on this? Thank you in advance.