diff --git a/lib/gui/app/modules/image-writer.js b/lib/gui/app/modules/image-writer.js
index 2995e320..b7cfb1e5 100644
--- a/lib/gui/app/modules/image-writer.js
+++ b/lib/gui/app/modules/image-writer.js
@@ -31,6 +31,13 @@ const windowProgress = require('../os/window-progress')
 const analytics = require('../modules/analytics')
 const packageJSON = require('../../../../package.json')
 
+/**
+ * @summary Number of threads per CPU to allocate to the UV_THREADPOOL
+ * @type {Number}
+ * @constant
+ */
+const THREADS_PER_CPU = 4
+
 /**
  * @summary Get application entry point
  * @function
@@ -165,6 +172,7 @@ exports.performWrite = (image, drive, onProgress) => {
           IPC_CLIENT_ID,
           IPC_SOCKET_ROOT: ipc.config.socketRoot,
           ELECTRON_RUN_AS_NODE: 1,
+          UV_THREADPOOL_SIZE: os.cpus().length * THREADS_PER_CPU,
 
           // Casting to Number nicely converts booleans to 0 or 1.
           OPTION_VALIDATE: Number(settings.get('validateWriteOnSuccess')),