css file load later than SVG files (lazy loading issue) after upgrade to 7.3

[renkun]

After upgrade to 7.3, it seems the css file is loaded later than the svg files:

It will works well again after I restore to V7.2

And below is the correct one running with 7.2

Also I checked the front-end code, it seems there are some logics of lazy loading changed, there is no inline JS code like below any more:

<script data-no-optimize="1">
...
function n(){console.log("[LiteSpeed] Start Lazy Load Images"),d=new LazyLoad({elements_selector:"[data-lazyloaded]",callback_finish:a}),o=function(){d.update()},e.MutationObserver&&new MutationObserver(o).observe(t.documentElement,{childList:!0,subtree:!0,attributes:!0})}var d,o;e.addEventListener?e.addEventListener("load",n,!1):e.attachEvent("onload",n)}(window,document);</script>