diff --git a/Sora/Managers/ImageUpscaler.swift b/Sora/Managers/ImageUpscaler.swift
index 25dbf15..70643d8 100644
--- a/Sora/Managers/ImageUpscaler.swift
+++ b/Sora/Managers/ImageUpscaler.swift
@@ -42,12 +42,9 @@ public struct LanczosUpscaleProcessor: ImageProcessor {
     public let sharpeningIntensity: Float
     public let sharpeningRadius: Float
     public var identifier: String {
-        "me.cranci.lanczos_\(scale)_sharp_\(sharpeningIntensity)_\(sharpeningRadius)"
+        "com.yourapp.lanczos_\(scale)_sharp_\(sharpeningIntensity)_\(sharpeningRadius)"
     }
 
-    // Reuse CIContext
-    private static let ciContext = CIContext(options: nil)
-
     public init(
         scale: CGFloat,
         sharpeningIntensity: Float = 0.7,
@@ -62,31 +59,40 @@ public struct LanczosUpscaleProcessor: ImageProcessor {
         item: ImageProcessItem,
         options: KingfisherParsedOptionsInfo
     ) -> KFCrossPlatformImage? {
-        let uiImage: KFCrossPlatformImage? = {
-            switch item {
-            case .image(let image): return image
-            case .data(let data): return KFCrossPlatformImage(data: data)
-            }
-        }()
-        guard let cgImage = uiImage?.cgImage else { return nil }
+        
+        let inputImage: KFCrossPlatformImage?
+        switch item {
+        case .image(let image):
+            inputImage = image
+        case .data(let data):
+            inputImage = KFCrossPlatformImage(data: data)
+        }
+        guard let uiImage = inputImage,
+              let cgImage = uiImage.cgImage else {
+            return nil
+        }
+
         let ciInput = CIImage(cgImage: cgImage)
 
         let scaleFilter = CIFilter.lanczosScaleTransform()
-        scaleFilter.inputImage = ciInput
-        scaleFilter.scale = Float(scale)
-        scaleFilter.aspectRatio = 1.0
-        guard let scaledCI = scaleFilter.outputImage else { return uiImage }
-
-        let unsharp = CIFilter.unsharpMask()
-        unsharp.inputImage = scaledCI
-        unsharp.intensity = sharpeningIntensity
-        unsharp.radius = sharpeningRadius
-        guard let sharpCI = unsharp.outputImage else {
-            return KFCrossPlatformImage(ciImage: scaledCI)
+        scaleFilter.inputImage   = ciInput
+        scaleFilter.scale        = Float(scale)
+        scaleFilter.aspectRatio  = 1.0
+        guard let scaledCI = scaleFilter.outputImage else {
+            return uiImage
         }
 
-        guard let outputCG = Self.ciContext.createCGImage(sharpCI, from: sharpCI.extent) else {
-            return KFCrossPlatformImage(ciImage: sharpCI)
+        let unsharp = CIFilter.unsharpMask()
+        unsharp.inputImage    = scaledCI
+        unsharp.intensity     = sharpeningIntensity
+        unsharp.radius        = sharpeningRadius
+        guard let sharpCI = unsharp.outputImage else {
+            return UIImage(ciImage: scaledCI)
+        }
+
+        let context = CIContext(options: nil)
+        guard let outputCG = context.createCGImage(sharpCI, from: sharpCI.extent) else {
+            return UIImage(ciImage: sharpCI)
         }
         return KFCrossPlatformImage(cgImage: outputCG)
     }