What parameter captures Page Load Time in Adobe Analytics ?
This is a good resource on potential options as well as pitfalls.
https://analyticsdemystified.com/adobe-analytics/measuring-page-load-time-with-numeric-event/
I'd definitely recommend Jim's answer, but for the sake of completeness, there's a plugin you can use to gauge load time here as well:
performanceTiming plugin - Adobe Experience Cloud
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