Here is a self-contained and simplified example of the problem. When the attached sample html uses stylesheet style_slow.css, the scrolling is sluggish, when it uses style_fast.css, the scrolling is fast. The only difference is that in the fast case, the following statements are commented out in several elements:
width=100%
height=100%
The original site had some non-unity scales, but 100% also causes the problem.
Here is a self-contained and simplified example of the problem. When the attached sample html uses stylesheet style_slow.css, the scrolling is sluggish, when it uses style_fast.css, the scrolling is fast. The only difference is that in the fast case, the following statements are commented out in several elements:
width=100%
height=100%
The original site had some non-unity scales, but 100% also causes the problem.
See previous post for my system specifications.