I added a line with the parameter above, after the address bar showing/hiding, the size of the content has stopped changing, but a white piece of page at the bottom remains, it looks terrible.
I think that without ignoreMobileResize: true the browser is trying to do everything right, but since everything is slow, the resizing is not so fast that the white bar from the address bar quickly disappears.
About the lags on the site when the animation is on, it happens without normalizeScroll, the animation itself is not complicated, but when you turn it on there is something incomprehensible to me, which the phone can not cope.
If I could show you a video from my phone of what's going on, maybe you would understand what the problem is.