diff --git a/src/views/dicom-show/dicom-preview.vue b/src/views/dicom-show/dicom-preview.vue
index 6fd73d4f..dfcdef17 100644
--- a/src/views/dicom-show/dicom-preview.vue
+++ b/src/views/dicom-show/dicom-preview.vue
@@ -64,20 +64,18 @@
 import * as dicomParser from 'dicom-parser'
 import * as cornerstone from 'cornerstone-core'
 import * as cornerstoneWADOImageLoader from 'cornerstone-wado-image-loader'
-import dicomStore from '@/utils/dicom-store'
+// import dicomStore from '@/utils/dicom-store'
 import dicomViewer from '@/components/Dicom/DicomViewer'
 import dicomPreview from '@/components/Dicom/DicomPreview'
 
 cornerstoneWADOImageLoader.external.dicomParser = dicomParser
 cornerstoneWADOImageLoader.external.cornerstone = cornerstone
-// cornerstoneWADOImageLoader.webWorkerManager.initialize({
-//   webWorkerPath: './webWorker.js',
-//   taskConfiguration: {
-//     decodeTask: {
-//       codecsPath: './dicomCodecs.js'
-//     }
-//   }
-// })
+var config = {
+  maxWebWorkers: navigator.hardwareConcurrency || 1,
+  startWebWorkersOnDemand: true
+}
+// var config = window.customWebWorkerConfig;
+cornerstoneWADOImageLoader.webWorkerManager.initialize(config)
 export default {
   components: {
     dicomViewer,
@@ -90,6 +88,7 @@ export default {
     },
     studyList: {
       type: Array,
+      // eslint-disable-next-line vue/require-valid-default-prop
       default: []
     }
   },
diff --git a/src/views/trials/trials-panel/visit/crc-upload/components/uploadDicomFiles2.vue b/src/views/trials/trials-panel/visit/crc-upload/components/uploadDicomFiles2.vue
index e98c8e47..e3353490 100644
--- a/src/views/trials/trials-panel/visit/crc-upload/components/uploadDicomFiles2.vue
+++ b/src/views/trials/trials-panel/visit/crc-upload/components/uploadDicomFiles2.vue
@@ -779,6 +779,11 @@ import {
 import * as dicomParser from "dicom-parser";
 import * as cornerstone from "cornerstone-core";
 import * as cornerstoneWADOImageLoader from "cornerstone-wado-image-loader";
+var config = {
+  maxWebWorkers: navigator.hardwareConcurrency || 1,
+  startWebWorkersOnDemand: true,
+}
+cornerstoneWADOImageLoader.webWorkerManager.initialize(config)
 cornerstoneWADOImageLoader.external.dicomParser = dicomParser;
 cornerstoneWADOImageLoader.external.cornerstone = cornerstone;
 import DicomPreview from "@/views/dicom-show/dicom-preview";