Lag experienced in Chrome browser on Mac due to Bootstrap CSS framework

I created a basic HTML and CSS file using Bootstrap that runs smoothly on my work computer with Chrome version 27.0.1453.110. However, when I attempt to open the file in Chrome on my personal Mac (unknown Chrome version), it loads very slowly and experiences significant lag while scrolling. What could I have missed or excluded from the code? The page consists of a simple test layout with a background image, navigation bar, footer, and text content.

[CSS Code Here]
[HTML Code Here]

Answer №1

It takes a considerable amount of time to paint box shadows. Perhaps using a one-line image with background-repeat-y to achieve the inset shadow effect would be more efficient. This way, Chrome will understand that it doesn't have to redraw the background and avoid wasting time on calculating a large area shadow effect. On the other hand, reducing the shadow blur radius can significantly enhance painting efficiency, as demonstrated in the provided link above.

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