diff --git a/Model/Utilities/Performance.swift b/Model/Utilities/Performance.swift
deleted file mode 100644
index e8987518..00000000
--- a/Model/Utilities/Performance.swift
+++ /dev/null
@@ -1,38 +0,0 @@
-// This file is part of Kiwix for iOS & macOS.
-//
-// Kiwix is free software; you can redistribute it and/or modify it
-// under the terms of the GNU General Public License as published by
-// the Free Software Foundation; either version 3 of the License, or
-// any later version.
-//
-// Kiwix is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Kiwix; If not, see https://www.gnu.org/licenses/.
-
-import Foundation
-import QuartzCore
-
-#if DEBUG
-final class Performance {
-
-    private let id: UUID
-    private var start: CFTimeInterval
-
-    init(id: UUID = UUID()) {
-        self.id = id
-        start = CACurrentMediaTime()
-    }
-
-    func measure(_ msg: String) {
-        print("\(msg) \(id): \((CACurrentMediaTime() - start) * 1000) ms")
-    }
-
-    func reset() {
-        start = CACurrentMediaTime()
-    }
-}
-#endif
diff --git a/Model/Utilities/PerformanceObjC.h b/Model/Utilities/PerformanceObjC.h
deleted file mode 100644
index 34a7815d..00000000
--- a/Model/Utilities/PerformanceObjC.h
+++ /dev/null
@@ -1,58 +0,0 @@
-// This file is part of Kiwix for iOS & macOS.
-//
-// Kiwix is free software; you can redistribute it and/or modify it
-// under the terms of the GNU General Public License as published by
-// the Free Software Foundation; either version 3 of the License, or
-// any later version.
-//
-// Kiwix is distributed in the hope that it will be useful, but
-// WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Kiwix; If not, see https://www.gnu.org/licenses/.
-
-#import <Foundation/Foundation.h>
-#import <QuartzCore/QuartzCore.h>
-
-#if DEBUG
-
-@interface PerformanceObjC : NSObject
-
-@property (nonatomic, strong, readonly) NSUUID *id;
-@property (nonatomic, assign) CFTimeInterval start;
-
-- (instancetype)initWithId:(NSUUID *)id;
-- (void)measure:(NSString *)msg;
-- (void)reset;
-
-@end
-
-@implementation PerformanceObjC
-
-- (instancetype)init {
-    return [self initWithId:[NSUUID UUID]];
-}
-
-- (instancetype)initWithId:(NSUUID *)id {
-    self = [super init];
-    if (self) {
-        _id = id;
-        _start = CACurrentMediaTime();
-    }
-    return self;
-}
-
-- (void)measure:(NSString *)msg {
-    CFTimeInterval elapsedTime = (CACurrentMediaTime() - _start) * 1000;
-    NSLog(@"%@ %@: %.2f ms", msg, _id.UUIDString, elapsedTime);
-}
-
-- (void)reset {
-    _start = CACurrentMediaTime();
-}
-
-@end
-
-#endif