The Oppo A78 Premium 5G is one of the most balanced mid-range smartphones available in India, blending sleek looks with reliable performance and a strong battery backup. But what many users don’t realize is that with a few smart settings, this phone can perform even better — offering sharper photos, smoother gaming, and longer battery life.
ColorOS 14 on the Oppo A78 Premium 5G is packed with advanced tools and hidden features designed to optimize your experience. Whether you’ve just bought the phone or have been using it for a while, these 17 expert tips and tricks will help you unlock the full potential of your device in November 2025.
1. Turn On High Performance Mode
The A78 Premium 5G is tuned for efficiency out of the box, but you can unlock its full CPU and GPU power. Go to Settings → Battery → More Settings → Performance Mode, then enable High Performance Mode. This gives you smoother gameplay and faster multitasking — ideal for gaming or video editing.
2. Use RAM Expansion for Multitasking
The phone supports virtual RAM expansion up to 8GB. To activate, head to Settings → About Device → RAM Expansion. Turn on the feature and allocate extra RAM from your internal storage. It keeps background apps from refreshing and improves stability when switching between tasks.
3. Enable AI System Booster
Oppo’s AI System Booster intelligently clears cache and prioritizes active apps. You can enable it under Settings → Additional Settings → System Performance Optimization. It helps maintain long-term speed and prevents lag as the device ages.
4. Optimize Battery Life with Sleep Standby Mode
For overnight power saving, turn on Sleep Standby Optimization in Settings → Battery → Advanced Settings. The phone automatically pauses non-essential background tasks when you’re not using it, saving up to 10% battery overnight.
5. Customize Battery Saver and Smart Charging
Go to Settings → Battery → Power Saving and enable Smart Power Saving. It adjusts brightness, refresh rate, and CPU performance dynamically. Also, activate Optimized Night Charging to slow the charge near 100%, extending battery lifespan.
6. Adjust Display Refresh Rate
The A78 Premium 5G supports a 90Hz display, but it may default to 60Hz. Switch it to 90Hz under Settings → Display & Brightness → Screen Refresh Rate. It makes scrolling and animations smoother without heavily impacting battery life.
7. Use Ultra Steady Mode for Better Videos
When recording videos, open the Camera app → Settings → Ultra Steady Mode. This uses EIS (Electronic Image Stabilization) to minimize shakes, making your clips look more professional — perfect for vlogging or travel videos.
8. Improve Low-Light Photos with AI Scene Enhancement
In the camera settings, toggle on AI Scene Enhancement. It automatically detects the scene (like food, landscape, or night shots) and adjusts contrast and saturation to improve color accuracy and lighting.
9. Clean System Cache Regularly
Over time, cache files can slow down your phone. Go to Settings → Storage → Clean Storage and remove temporary files. You can also use Phone Manager → Clean Storage for a one-tap solution.
10. Manage Background Apps Smartly
Some apps continue to run even when you’re not using them. Open Settings → Apps → App Management, select unused apps, and tap Restrict Background Activity. This saves both memory and battery life.
11. Use Dark Mode for Battery Efficiency
OLED displays consume less power when displaying dark pixels. Enable Dark Mode via Settings → Display & Brightness. It not only saves power but also reduces eye strain during nighttime use.
12. Fine-Tune Camera HDR and Filters
For more natural shots, go to Camera → Settings → HDR Mode and set it to Auto. This ensures balanced lighting between bright and dark areas. Avoid using strong filters frequently — instead, use Pro Mode for manual ISO and exposure control.
13. Enable App Startup Control
This feature prevents unnecessary apps from auto-launching. Go to Settings → Apps → App Startup Management, and disable auto-start for apps you rarely use. It improves boot time and reduces background power consumption.
14. Use Game Mode for Lag-Free Gaming
Open Game Space from the app drawer and add your favorite games. In Game Assistant Settings, select Pro Gamer Mode to boost frame rates and block notifications while gaming. You’ll notice smoother performance in titles like BGMI and Free Fire.
15. Calibrate Screen Colors for Accuracy
Navigate to Settings → Display & Brightness → Screen Color Mode and choose Vivid Mode for saturated visuals or Natural Mode for color-accurate tones. It enhances your media experience, especially for streaming and editing photos.
16. Turn Off Animation Effects for Speed
If you prefer a snappier interface, reduce system animations. Enable Developer Options (tap Build Number 7 times under “About Device”) and set Animation Scales (Window, Transition, Animator) to 0.5x or Off. It makes the phone feel significantly faster.
17. Keep Software Updated
Finally, ensure your device stays updated. Go to Settings → About Device → Software Update and enable Auto Update via Wi-Fi. Oppo regularly releases ColorOS patches to improve battery efficiency, camera AI, and app responsiveness.
Bonus Tip: Use Battery Health Check
You can monitor battery wear levels directly. Go to Settings → Battery → Battery Health. If the health drops below 85%, consider adjusting charging habits or enabling Super Power Saving more often to extend longevity.
Final Thoughts
The Oppo A78 Premium 5G is a capable smartphone that performs even better when optimized properly. These 17 tips help you fine-tune its performance, maximize battery life, and take advantage of the powerful ColorOS features built into the device.
Whether you’re a gamer, photographer, or everyday user, implementing these small but effective changes will make your Oppo A78 Premium 5G run faster, last longer, and capture sharper moments — just the way it should.
FAQs
1. How can I make my Oppo A78 Premium 5G faster?
Enable High Performance Mode, reduce animations, and clean cache regularly using the built-in Phone Manager.
2. How do I improve camera quality on the A78 Premium 5G?
Use AI Scene Enhancement, Ultra Steady Mode, and enable HDR Auto Mode for better detail and dynamic range.
3. How can I extend the battery life of my Oppo A78 Premium 5G?
Turn on Sleep Standby Optimization, enable Smart Power Saving, and use Dark Mode to reduce display power usage.
4. What’s the best RAM setting for smooth multitasking?
Activate RAM Expansion and set it to the maximum 8GB to prevent background apps from closing too early.
5. Does regular software updating help performance?
Yes, updating ensures bug fixes, security improvements, and better system stability for long-term performance.
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