Performance Tab in Lightning Inspector

I’m trying to understand the performance bottle necks of my lightning component using Salesforce Lightning Inspector (

I see “markup://aura:text” taking around 70-80% of the performance, and I’m trying to understand what is this about!? Any suggestions/pointers are most welcome.



When you see “markup://aura:text” taking a lot of time in most cases it means there is a call to backend at that time.

Lightning Inspector Performance Tab

If you open “Transactions Tab” in Lightning Inspector you will see that http-request takes that time

Lightning Inspector Transactions Tab

If you transfer a lot of data (several MBs) from Apex to Lightning that might be the bottleneck.

Source : Link , Question Author : Surya Chandra Rao Gandreddi , Answer Author : steals

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