diff --git a/backends/vulkan/runtime/graph/ops/glsl/conv2d_pw.yaml b/backends/vulkan/runtime/graph/ops/glsl/conv2d_pw.yaml
index 1f0e8fb71be..d4cb69d7648 100644
--- a/backends/vulkan/runtime/graph/ops/glsl/conv2d_pw.yaml
+++ b/backends/vulkan/runtime/graph/ops/glsl/conv2d_pw.yaml
@@ -9,8 +9,8 @@ conv2d_pw:
     OPERATOR: X
     NDIM: 3
     DTYPE: float
-    TILE_SIZE_X: 2
-    TILE_SIZE_Y: 2
+    TILE_SIZE_X: 1
+    TILE_SIZE_Y: 4
   generate_variant_forall:
     DTYPE:
       - VALUE: half
diff --git a/backends/vulkan/runtime/graph/ops/impl/Convolution.cpp b/backends/vulkan/runtime/graph/ops/impl/Convolution.cpp
index 381b9de0d6a..a0ac58ea9bc 100644
--- a/backends/vulkan/runtime/graph/ops/impl/Convolution.cpp
+++ b/backends/vulkan/runtime/graph/ops/impl/Convolution.cpp
@@ -305,8 +305,8 @@ utils::uvec3 create_conv2d_global_wg_size(
   if (method == Conv2dMethod::Pointwise) {
     const utils::uvec3 image_extents = graph.logical_limits_of(out);
     return {
-        utils::div_up(image_extents[0u], 2u),
-        utils::div_up(image_extents[1u], 2u),
+        utils::div_up(image_extents[0u], 1u),
+        utils::div_up(image_extents[1u], 4u),
         image_extents[2u]};
   } else if (method == Conv2dMethod::Depthwise && stride_equals_dilation) {
     const utils::uvec3 image_extents = graph.create_global_wg_size(out);