diff --git a/plugin/src/Caelestia/Blobs/blobshape.cpp b/plugin/src/Caelestia/Blobs/blobshape.cpp
index 96662150..718c03e7 100644
--- a/plugin/src/Caelestia/Blobs/blobshape.cpp
+++ b/plugin/src/Caelestia/Blobs/blobshape.cpp
@@ -69,13 +69,16 @@ void BlobShape::geometryChange(const QRectF& newGeometry, const QRectF& oldGeome
     QQuickItem::geometryChange(newGeometry, oldGeometry);
     updateCenteredDeformMatrix();
     if (m_group) {
-        // Only trigger redraw if the change is visually meaningful
-        const auto dx = std::abs(newGeometry.x() - oldGeometry.x());
-        const auto dy = std::abs(newGeometry.y() - oldGeometry.y());
+        // Accumulate sub-pixel drift so slow movements don't desync the shader
+        m_pendingDx += static_cast<float>(newGeometry.x() - oldGeometry.x());
+        m_pendingDy += static_cast<float>(newGeometry.y() - oldGeometry.y());
         const auto dw = std::abs(newGeometry.width() - oldGeometry.width());
         const auto dh = std::abs(newGeometry.height() - oldGeometry.height());
-        if (dx > 0.5 || dy > 0.5 || dw > 0.5 || dh > 0.5)
+        if (std::abs(m_pendingDx) > 0.5f || std::abs(m_pendingDy) > 0.5f || dw > 0.5 || dh > 0.5) {
+            m_pendingDx = 0;
+            m_pendingDy = 0;
             m_group->markShapeDirty(this);
+        }
     }
 }
 
diff --git a/plugin/src/Caelestia/Blobs/blobshape.hpp b/plugin/src/Caelestia/Blobs/blobshape.hpp
index c9d98504..c05a40d8 100644
--- a/plugin/src/Caelestia/Blobs/blobshape.hpp
+++ b/plugin/src/Caelestia/Blobs/blobshape.hpp
@@ -70,6 +70,8 @@ protected:
     QRectF m_localPaddedRect;
     QVector<BlobRectData> m_cachedRects;
     int m_cachedMyIndex = -2;
+    float m_pendingDx = 0;
+    float m_pendingDy = 0;
     bool m_cachedHasInverted = false;
     float m_cachedInvertedRadius = 0;
     float m_cachedInvertedOuter[4] = {};