Slow editor

I just got a new laptop that I am trying to run Unreal on, but the editor is slow beyond usability.
In particular, the framerate is below 10FPS, and clicks take a few seconds to register, and shaders compile slowly.

Versions 23, 24, and 25 have this issue, but version 22 appears to be working just fine on the default settings.
My version I intend to use is 4.24

To install, I:

  1. Installed Epic Games Launcher
  2. Installed VS2019, including Game Dev with C++
  3. Installed Unreal Engine from the Epic Game Launcher
  4. Created new blank project from with the default settings.

My hardware:
Windows 10
CPU: Intel i7-8850H @ 2.6GHz
RAM: 32GB
GPU: Nvidia Quadro P2000
DirectX: 12
Resolution: 3840x2160

Things I have tried:

  1. Update graphics driver; no effect
  2. Turned off “enable high DPI support”; brought framerate from ~1FPS to ~10FPS
  3. Fiddled with the “Smooth Frame Rate” setting; no effect
  4. Installing in different locations; no effect

I have heard there are some programs which negatively affect Unreal performance,
but I don’t see any mentioned on my PC, and I don’t know how to further narrow the selection.

What might be causing this issue, and how can I fix it?