diff --git a/appveyor/scripts/setSconsArgs.ps1 b/appveyor/scripts/setSconsArgs.ps1
index 9c4dd3eca7b..397abeb1761 100644
--- a/appveyor/scripts/setSconsArgs.ps1
+++ b/appveyor/scripts/setSconsArgs.ps1
@@ -15,6 +15,8 @@ if(!$env:APPVEYOR_PULL_REQUEST_NUMBER) {
 	$sconsArgs += " certFile=appveyor\authenticode.pfx certTimestampServer=http://timestamp.digicert.com"
 }
 $sconsArgs += " version_build=$env:APPVEYOR_BUILD_NUMBER"
+# Use only 1 concurrent job when building
+$sconsArgs += " -j1"
 # We use cmd to run scons because PowerShell throws exceptions if warnings get dumped to stderr.
 # It's possible to work around this, but the workarounds have annoying side effects.
 Set-AppveyorBuildVariable "sconsOutTargets" $sconsOutTargets
diff --git a/sconstruct b/sconstruct
index 634576820b9..9fbce6da25a 100755
--- a/sconstruct
+++ b/sconstruct
@@ -7,6 +7,7 @@
 import sys
 import os
 import platform
+import multiprocessing
 
 # Ensure we are inside the Python virtual environment.
 nvdaVenv = os.getenv("NVDA_VENV")
@@ -121,9 +122,14 @@ env = Environment(variables=vars,HOST_ARCH='x86',tools=[
 	"recursiveInstall"
 ])
 
-# speed up subsiquent runs by checking timestamps of targets and dependencies, and only using md5 if timestamps differ.
+# speed up subsequent runs by checking timestamps of targets and dependencies, and only using md5 if timestamps differ.
 env.Decider('MD5-timestamp')
 
+# Make sure to run the build on multiple threads so it runs faster
+env.SetOption('num_jobs', multiprocessing.cpu_count())
+realNumJobs = env.GetOption('num_jobs')
+print(f"Building using {realNumJobs} job{'s' if realNumJobs != 1 else ''}")
+
 #Make our recursiveCopy function available to any script using this environment
 env.AddMethod(recursiveCopy)
 
diff --git a/user_docs/en/changes.t2t b/user_docs/en/changes.t2t
index e0ebe69e087..1617cb567f3 100644
--- a/user_docs/en/changes.t2t
+++ b/user_docs/en/changes.t2t
@@ -92,6 +92,8 @@ This ensures code will honor the Windows user setting for swapping the primary m
 - ``LOCALE_SLANGUAGE``, ``LOCALE_SLIST`` and ``LOCALE_SLANGDISPLAYNAME`` are removed from ``languageHandler`` - use members of ``languageHandler.LOCALE`` instead. (#12753)
 - Switched from Minhook to Microsoft Detours as a hooking library for NVDA. Hooking with this library is mainly used to aid the display model. (#12964)
 - ``winVersion.WIN10_RELEASE_NAME_TO_BUILDS`` is removed. (#13211)
+- SCons now builds with multiple concurrent jobs, equal to the number of logical processors in the system.
+This can dramatically decrease build times on multi core systems. (#13226)
 -