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Indeed, most users must immediately get the response they want from their mobile application. The ideal time to load mobile apps is approximately two seconds. But, as per the findings of the Akamai study, for each second the app consumes, its conversion rate decreases by 7%.

In addition to the pain, Users are upset and annoyed when they are forced to wait longer and never return to the exact app. Another study shows that 48% of users uninstall or cease using an app when the app is slow.

So, the initial task is to discover the root basis or reason why the application is not functioning correctly. 

7 Reasons Why Your App Is Lagging

7 Reasons Why Your App Is Lagging:

1. There is too much conflict:

It is claimed that you have multi-threaded software. Multi-threaded does not necessarily make it faster. Your apps won't benefit from a multi-threaded model and multiple CPU/cores if they are battling blocking, waiting, and waiting. Examine your threading model and eliminate conflicts. Insufficient contention can affect your app's performance when the load grows. The addition of more CPUs will not improve performance.

2. Bad data model:

Does your app use data? Does your app load heavily on read or write? Your app's performance is affected if your data model fails to optimize for the most common scenarios. If you run a read-intensive application and you store your data in SQL. A flawed data model or wrong choices for indexing can prevent your application from failing. Look closely at the usage scenarios and examples and see how your data model supports them.

3. Too much synchronous IO:

Does your application depend on a database or a messaging system to be returned to the user? If yes, consider switching between synchronous and asynchronous communications models. So, your application can be returned to the user fast and let the process run its course in the background.

Completed requests can be reported to the user asynchronously later without creating a waiting period and forcing users to wait.

4. Bad UI/UX design:

Yes, your app will be slow because it takes a long time to figure out what you must do if the user interface needs to be designed better. Many app development London companies concentrate on when they press a button, produce reports, and display charts or graphs. What is the time it takes to work out the details? This is a factor in your application's performance and ultimately impacts the quality of service. Focus on UI design and user experience, which will help make your application quicker.

5. Mismatch between workload and resources:

Poor capacity planning can destroy your application regardless of how it's built, with insufficient memory, no CPU, and a flawed heap/GC model for Java applications. We've all seen what happens to Java apps when GC takes over -- timeouts, hangs, etc. Many users use devices or VM instances for this issue to reduce the issue to a certain extent. However, adjusting Java GC is difficult when dealing with server applications with different demands. A good understanding of the workload of an application vs. available resources is essential for optimal application performance.

6. Bottleneck effect:

However well your application is built, it will run as slowly as the slowest link. This is because the network, DB, and application servers need to be quick to ensure maximum performance. Take note of the infrastructure components that adhere to a hub, spoke, and sink models. Every sink or hub can be a performance breaker. The most common examples of sinks and hubs are brokers, web servers, databases, routers, and middleware. Reduce hub/spoke dependency, utilize redundant replicated infrastructure, and reduce bottlenecks by eliminating one point of failure.

7. Too much linear processing:

Sometimes, your application requires lots of processing, which requires a large amount of computation with a large volume of data. It is time-consuming. Why does it happen in a series?

Try breaking the problem into smaller pieces and then complete all tasks simultaneously. Look into clustered computing platforms like Spark, STORM, and Map Reduce to run tasks simultaneously with a group of servers. Ensure you aggregate your data before and reduce data processing overhead for the most commonly used use cases.

Improve your data model to reflect how it is used, not just how well the information is stored. As a result, it is necessary to compromise some aspects to achieve more speedy processing.

8. The Absence of tools and processes:

Things fail to slow down, and entropy is everywhere, even within your applications. Are you aware of when something is failing or slowing down? Have you got the right tools to handle failures or performance bottlenecks? A solid approach like DevOps can make a huge difference in ensuring your apps perform running at their peak.

There's no way to be enough speed. Your apps are always faster, better, and snappier. Ensure you have a strong relationship between the end-user, Ops, and Dev, and see your app's quality increase. Look at Unified Application Analytics platforms that allow you to consolidate end-user performance logs, other infrastructure, and application metrics in a single overview. 

9. Bad developers:

Only hire App Developers UK who pay attention to speed. Today, writing excessive code that runs but is slow is simple. For instance, in Java, app developers UK with an excellent grasp of the C/C++ language and assemblers are better at understanding performance than those who work with higher-level languages. In addition, knowing about OS, hardware, memory management, and IO is a significant advantage, mainly when delivering efficient applications.

10. Incorrect expectations for performance:

You think your app is speedy, but the users think it's slow. Why? Your application's performance depends on the end user's expectations. What's fast for one is extremely slow for another. For certain people, a couple of seconds is fast, and for others, it can take time in infinity. Compare the expectations for the performance of a high-frequency trader with a buyer of televisions on eBay and Amazon. There's a vast variation in expectations for performance. Learn about your user and create in line with their needs.

7 Reasons Why Your App Is Lagging


Mobile apps are an excellent way to reach your target customers. However, if they're not performing well or become slow and slow, the issue must be fixed promptly. There are various reasons your application loses the speed aspect, so you need to pinpoint the issue and address it as quickly as possible.

You can also avail of the services of a highly experienced and reliable App Development Company with skilled UK app developers who understand the art of increasing application speed to accomplish the task.


What are the reasons for application lagging?

Network Latency: The speed of your network will significantly affect the performance of your mobile app. If your network is not fast, the performance of your app will also be sluggish. 

What causes an Android application to slow down?

The most crucial reason behind the Android App's lag or slow performance speed for its Android app is that it runs GC often. In one sentence, the time during the duration of time that GC is running, the actual application isn't running.

What is the frequency at which applications fail?

The app market is small. 0.5 per cent of applications are successful. 9999 of 10,000 apps were unsuccessful due to a variety of reasons. Here are the most frequent ones, as outlined by experts: Under 1,000 downloaded downloads, 67.8 per cent. Below 1000 active users: 17.9%.