PR Summary

Fix #3879

The lagging is due to PSReadLine queries for cursor position for every key stroke even when it's unnecessary.
 
This change avoids querying for cursor position when it's not necessary. Also skip terminal window resizing check when we've rendered very recently (< 50ms), because a window resizing is unlikely to happen in such a short time interval.

The change has been verified by the user: #3879 (comment)

PR Checklist

• PR has a meaningful title
  • Use the present tense and imperative mood when describing your changes
• Summarized changes
• Make sure you've added one or more new tests. Cannot add automation test for this change, but it's verified by the user, see When upgrading from PSReadLine 2.1 to 2.2, Pasting on remote machines gets slow towards end #3879 (comment)
• Make sure you've tested these changes in terminals that PowerShell is commonly used in (i.e. conhost.exe, Windows Terminal, Visual Studio Code Integrated Terminal, etc.)
• User-facing changes
  • Not Applicable
  • OR
  • Documentation needed at PowerShell-Docs
    • Doc Issue filed:

Microsoft Reviewers: Open in CodeFlow