diff --git a/src/engine/Graphics2d.js b/src/engine/Graphics2d.js
index 1104c73..d2eb1a2 100644
--- a/src/engine/Graphics2d.js
+++ b/src/engine/Graphics2d.js
@@ -27,6 +27,7 @@ class Graphics2d extends React.Component {
   constructor(props) {
     super(props);
 
+    this.store = props;
     this.m_mount = React.createRef();
 
     this.onMouseDown = this.onMouseDown.bind(this);
@@ -527,7 +528,7 @@ class Graphics2d extends React.Component {
     if (isSegm) {
       const w = this.m_toolPick.m_wScreen;
       const h = this.m_toolPick.m_hScreen;
-      this.segm2d.render(ctx, w, h, this.imgData);
+      this.segm2d.renderImage(ctx, w, h, this.imgData);
     } else {
       createImageBitmap(this.imgData)
         .then((imageBitmap) => {
@@ -692,6 +693,12 @@ class Graphics2d extends React.Component {
         startY: evt.clientY,
       });
     }
+
+    if (this.m_isSegmented && this.segm2d.model) {
+      // We do not need update segmented image (with model)
+      // on mouse move event to performance issues.
+      return;
+    }
     store.graphics2d.forceUpdate();
   }
 
@@ -767,13 +774,14 @@ class Graphics2d extends React.Component {
    * Invoke forced rendering, after some tool visual changes
    */
   forceUpdate(volIndex) {
-    // console.log('forceUpdate ...');
+    console.log('forceUpdate ...');
     this.prepareImageForRender(volIndex);
     // this.forceRender();
     if (this.m_isSegmented) {
       // need to draw segmented image
       if (this.segm2d.model !== null) {
-        // we have loaded model: applt it to image
+        // we have loaded model: apply it to image
+        // TODO update image only on some specific events: zoom, explore
         this.segm2d.startApplyImage();
       }
     } else {
diff --git a/src/engine/Segm2d.js b/src/engine/Segm2d.js
index 0f73ecc..76e35c6 100644
--- a/src/engine/Segm2d.js
+++ b/src/engine/Segm2d.js
@@ -14,7 +14,9 @@
 // ********************************************************
 
 import * as tf from '@tensorflow/tfjs';
-const PATH_MODEL = 'https://lugachai.ru/med3web/tfjs/model.json';
+import StoreActionType from '../store/ActionTypes';
+
+const BRAIN_MODEl = 'https://daentjnvnffrh.cloudfront.net/models/brain/model.json';
 
 // ********************************************************
 // Const
@@ -45,9 +47,11 @@ const NUM_CLASSES = 96;
 // ********************************************************
 
 class Segm2d {
-  constructor(objGraphics2d) {
+  constructor(props) {
     this.stage = STAGE_MODEL_NOT_LOADED;
-    this.objGraphics2d = objGraphics2d;
+    this.objGraphics2d = props;
+    this.store = props.store;
+
     this.model = null;
     this.tensorIndices = null;
     this.imgData = null;
@@ -116,14 +120,14 @@ class Segm2d {
     } // for (y)
   }
 
-  //
   // Load model
   async onLoadModel() {
     this.stage = STAGE_MODEL_IS_LOADING;
     this.pixels = null;
 
     console.log('Loading tfjs model...');
-    const modelLoaded = await tf.loadLayersModel(PATH_MODEL, { strict: false });
+    this.store.dispatch({ type: StoreActionType.SET_PROGRESS_INFO, titleProgressBar: 'Loading tfjs model...' });
+    const modelLoaded = await tf.loadLayersModel(BRAIN_MODEl, { strict: false, onProgress: this.onTFLoadProgress.bind(this) });
 
     this.model = modelLoaded;
     this.stage = STAGE_MODEL_READY;
@@ -135,9 +139,6 @@ class Segm2d {
   }
 
   async startApplyImage() {
-    if (this.stage === STAGE_SEGMENTATION_READY) {
-      return;
-    }
     this.stage = STAGE_IMAGE_PROCESSED;
     console.log('Start apply segm to image ...');
 
@@ -280,7 +281,7 @@ class Segm2d {
     this.srcImageData = imgData;
   }
 
-  render(ctx, w, h, imgData) {
+  renderImage(ctx, w, h, imgData) {
     this.srcImageData = imgData;
     this.wSrc = w;
     this.hSrc = h;
@@ -291,7 +292,7 @@ class Segm2d {
     console.log('Segm2d render. stage = ' + strMessage);
 
     // load model
-    if (this.model === null) {
+    if (this.model === null && this.stage === STAGE_MODEL_NOT_LOADED) {
       this.onLoadModel();
     } else {
       // change slider or similar: need to rebuild segm for the new source image
@@ -327,6 +328,14 @@ class Segm2d {
     const y = h / 2;
     ctx.fillText(strMsgPrint, x, y);
   }
+
+  onTFLoadProgress(progress) {
+    this.store.dispatch({ type: StoreActionType.SET_PROGRESS, progress });
+    if (progress === 1) {
+      this.store.dispatch({ type: StoreActionType.SET_PROGRESS, progress: 0 });
+      this.store.dispatch({ type: StoreActionType.SET_PROGRESS_INFO, titleProgressBar: null });
+    }
+  }
 }
 
 function drawRoundedRect(ctx, x, y, width, height, borderRadius) {