Are there general or specific iOS6 performance issues on iPhone 4?

I would like to upgrade my iPhone 4 to iOS6 but I'm wondering if I will get performance loss (as when I upgraded my iPhone 3G to iOS4 : terrible). Can someone confirm that it won't affect my day to day use?

Solution 1:

I have been running iOS 6 since Friday night (I ran the Golden Master that became release) on my iPhone 4.

Safari feels snappier (and show improvement on SunSpider benchmarks).

I have not noticed any degradation like the 3G iOS 4 craziness that apple gave us (I went through that as well).

I am very happy and using it (everyday) and it feels a bit better in most things than 5.

Solution 2:

I'm running iOS 6 on iPhone 4 and the first thing I noticed is a clear performance boost. Everything feels smoother and snappier. Animations are more fluid too.

Solution 3:

I have iPhone 4 and yesterday i upgraded it to iOS 6. But really - i can't find performance change. New maps, new apps...but that's all. For me there is no performance change, or it just too small and i can't feel it now
So don't be affraid of the upgrade