diff --git a/egs/grid/AVSR/lipnet_ctc_vsr/decode.py b/egs/grid/AVSR/lipnet_ctc_vsr/decode.py
index 4e63e53c7..d4f3910a3 100644
--- a/egs/grid/AVSR/lipnet_ctc_vsr/decode.py
+++ b/egs/grid/AVSR/lipnet_ctc_vsr/decode.py
@@ -142,7 +142,7 @@ def get_params() -> AttributeDict:
             "anno_path": Path("download/GRID/GRID_align_txt"),
             "val_list": Path("download/GRID/unseen_val.txt"),
             "vid_padding": 75,
-            "num_workers": 1,
+            "num_workers": 16,
             "batch_size": 120,
         }
     )
diff --git a/egs/grid/AVSR/lipnet_ctc_vsr/train.py b/egs/grid/AVSR/lipnet_ctc_vsr/train.py
index 6eb985832..9caa9b55a 100644
--- a/egs/grid/AVSR/lipnet_ctc_vsr/train.py
+++ b/egs/grid/AVSR/lipnet_ctc_vsr/train.py
@@ -181,7 +181,7 @@ def get_params() -> AttributeDict:
             "train_list": Path("download/GRID/unseen_train.txt"),
             "vid_padding": 75,
             "aud_padding": 200,
-            "num_workers": 1,
+            "num_workers": 16,
             "batch_size": 120,
         }
     )
diff --git a/egs/grid/AVSR/local/dataset_av.py b/egs/grid/AVSR/local/dataset_av.py
index 70957c14b..2f023b080 100644
--- a/egs/grid/AVSR/local/dataset_av.py
+++ b/egs/grid/AVSR/local/dataset_av.py
@@ -8,7 +8,7 @@ import torch
 import torchaudio
 from torch.utils.data import Dataset
 
-from cvtransforms import HorizontalFlip, ColorNormalize
+from .cvtransforms import HorizontalFlip, ColorNormalize
 
 
 class dataset_av(Dataset):
diff --git a/egs/grid/AVSR/local/dataset_visual.py b/egs/grid/AVSR/local/dataset_visual.py
index 557e8aec0..6fb826b48 100644
--- a/egs/grid/AVSR/local/dataset_visual.py
+++ b/egs/grid/AVSR/local/dataset_visual.py
@@ -4,7 +4,7 @@ import os
 import numpy as np
 import torch
 from torch.utils.data import Dataset
-from cvtransforms import HorizontalFlip, ColorNormalize
+from .cvtransforms import HorizontalFlip, ColorNormalize
 
 
 class dataset_visual(Dataset):