diff --git a/Makefile b/Makefile
index 2980e8b341..8e6d4fd836 100644
--- a/Makefile
+++ b/Makefile
@@ -50,7 +50,8 @@ BUILD_SYSTEM_DIR := vendor/nimbus-build-system
 
 ifeq ($(NIM_PARAMS),)
 # "variables.mk" was not included, so we update the submodules.
-GIT_SUBMODULE_UPDATE := git submodule update --init --recursive
+NUMPROC ?= 10
+GIT_SUBMODULE_UPDATE := git submodule update --init --recursive --jobs $(NUMPROC)
 .DEFAULT:
 	+@ echo -e "Git submodules not found. Running '$(GIT_SUBMODULE_UPDATE)'.\n"; \
 		$(GIT_SUBMODULE_UPDATE); \
diff --git a/ci/Jenkinsfile.windows b/ci/Jenkinsfile.windows
index 86b98b74ba..ed64b36649 100644
--- a/ci/Jenkinsfile.windows
+++ b/ci/Jenkinsfile.windows
@@ -5,7 +5,7 @@ library 'status-jenkins-lib@v1.9.7'
 def isPRBuild = utils.isPRBuild()
 
 pipeline {
-  agent { label 'windows && x86_64 && qt-5.15.2 && go-1.21' }
+  agent { label 'windows && x86_64 && qt-5.15.2 && go-1.21 && win-04' }
 
   parameters {
     booleanParam(
@@ -66,8 +66,10 @@ pipeline {
 
   environment {
     PLATFORM = "windows/${getArch()}"
+    /* Number of processors on the host*/
+    NUMPROC = "${sh(script: 'nproc', returnStdout: true).trim()}"
     /* Improve make performance */
-    MAKEFLAGS = "-j${utils.getProcCount()} V=${params.VERBOSE}"
+    MAKEFLAGS = "-j${env.NUMPROC} V=${params.VERBOSE}"
     /* Explicitly set the QT version */
     QTDIR = "/c/Qt/5.15.2/msvc2019_64"
     PATH = "${env.QTDIR}/bin:${env.PATH}"