We currently have a setup where we have a RadEditor control embedded into a user control (.ascx). This user control is then embedded into the content template of a RadWindow control that is not visible by default. The user clicks a button, and we have it set up to where the RadWindow pops up and the RadEditor control is fully functioning.
As is today, the setup works perfectly except for one issue: performance.
Using the network monitor, we've noticed that page loads and postbacks take anywhere between 900 ms to 1.4 seconds. If we take the RadEditor completely out of the code, this performance improves to 100ms to 200ms page loads and pstbacks.
So my question is are there any known performance issues regarding the RadEditor control inside of a RadWindow control?
For reference we are referencing Telerik.Web.UI.dll version 2019.2.514.45