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Spot the Symptoms of Poor App Performance - Part 1

Ricardo Belmar

Are your business applications sluggish? Choppy? Prone to getting hung up or crashing at the most inopportune times? If these symptoms sound familiar, you might be suffering from the heartache of … poor application performance. Stop me if any of this sounds familiar:

Symptom 1: Important apps periodically get slow, choppy or just crash

This is the most obvious sign — and the one you're likely to hear about first and loudest from end-users. Internally, your media and collaboration apps get choppy and unresponsive at unpredictable times. Employees complain they can't understand what colleagues are saying over Skype. Or their Slack or Teams connection keeps dropping and asking them to reconnect. Or it takes multiple tries to get a video conference to load.

Symptom 2: Real-time business apps show unexplained faults and errors

As more companies roll out analytics, machine learning and other apps geared towards automating real-time decision-making, they need those apps to work in actual "real time." Think a manufacturing floor applying analytics to optimize production processes, or an oil rig monitoring heavy equipment, or a retailer updating inventory systems. If the real-time data stream those apps rely on gets backed up, it can create unexpected issues in higher-level operations.

Symptom 3: Some apps are sluggish or crashing, while others seem fine

This symptom is quite common, especially in businesses using software-defined wide-area networks (SD-WAN). For example, users dialing into an important video conference experience lags and disconnects, while people in the break room watch the new Avengers trailer in 4K video without a blip. Your SD-WAN is supposed to optimize app performance, so what's going on here? Well, the SD-WAN is optimizing your apps. The problem is, you have lots of them competing for limited bandwidth, and it's optimizing the wrong ones.

Symptom 4: You've recently deployed new technology and aren't getting the benefits you expected

In your quest to digitally transform your business, you might deploy new tools — like launching a new IoT app in a manufacturing facility or giving sales clerks iPads to help customers check out on the retail floor. But the IoT app isn't lowering your maintenance costs. Or sales conversions haven't gone up the way you expected. The issue might be that those apps require a baseline level of performance that your network can't maintain. In customer-facing situations, staff may even be abandoning the new tools because when they try to use them, they end up with frustrated customers.

Symptom 5: Adding more bandwidth doesn't fix the problem

Many businesses experiencing issues like these think they just need a fatter network pipe. So, they throw more bandwidth at the problem, but it doesn't go away. Especially frustrating, even real-time data flows — where the amount of data transmitted is relatively small — keep getting congested. The likely cause: occasional high-volume data flows (like big file transfers) are overwhelming flows with smaller transactional components. More bandwidth won't solve that problem.

If these symptoms sound familiar, don't worry, you're not alone. App performance issues have become a global epidemic.

Read Spot the Symptoms of Poor App Performance - Part 2, where we try to diagnose what's happening here.

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Spot the Symptoms of Poor App Performance - Part 1

Ricardo Belmar

Are your business applications sluggish? Choppy? Prone to getting hung up or crashing at the most inopportune times? If these symptoms sound familiar, you might be suffering from the heartache of … poor application performance. Stop me if any of this sounds familiar:

Symptom 1: Important apps periodically get slow, choppy or just crash

This is the most obvious sign — and the one you're likely to hear about first and loudest from end-users. Internally, your media and collaboration apps get choppy and unresponsive at unpredictable times. Employees complain they can't understand what colleagues are saying over Skype. Or their Slack or Teams connection keeps dropping and asking them to reconnect. Or it takes multiple tries to get a video conference to load.

Symptom 2: Real-time business apps show unexplained faults and errors

As more companies roll out analytics, machine learning and other apps geared towards automating real-time decision-making, they need those apps to work in actual "real time." Think a manufacturing floor applying analytics to optimize production processes, or an oil rig monitoring heavy equipment, or a retailer updating inventory systems. If the real-time data stream those apps rely on gets backed up, it can create unexpected issues in higher-level operations.

Symptom 3: Some apps are sluggish or crashing, while others seem fine

This symptom is quite common, especially in businesses using software-defined wide-area networks (SD-WAN). For example, users dialing into an important video conference experience lags and disconnects, while people in the break room watch the new Avengers trailer in 4K video without a blip. Your SD-WAN is supposed to optimize app performance, so what's going on here? Well, the SD-WAN is optimizing your apps. The problem is, you have lots of them competing for limited bandwidth, and it's optimizing the wrong ones.

Symptom 4: You've recently deployed new technology and aren't getting the benefits you expected

In your quest to digitally transform your business, you might deploy new tools — like launching a new IoT app in a manufacturing facility or giving sales clerks iPads to help customers check out on the retail floor. But the IoT app isn't lowering your maintenance costs. Or sales conversions haven't gone up the way you expected. The issue might be that those apps require a baseline level of performance that your network can't maintain. In customer-facing situations, staff may even be abandoning the new tools because when they try to use them, they end up with frustrated customers.

Symptom 5: Adding more bandwidth doesn't fix the problem

Many businesses experiencing issues like these think they just need a fatter network pipe. So, they throw more bandwidth at the problem, but it doesn't go away. Especially frustrating, even real-time data flows — where the amount of data transmitted is relatively small — keep getting congested. The likely cause: occasional high-volume data flows (like big file transfers) are overwhelming flows with smaller transactional components. More bandwidth won't solve that problem.

If these symptoms sound familiar, don't worry, you're not alone. App performance issues have become a global epidemic.

Read Spot the Symptoms of Poor App Performance - Part 2, where we try to diagnose what's happening here.

Hot Topics

The Latest

Organizations that perform regular audits and assessments of AI system performance and compliance are over three times more likely to achieve high GenAI value than organizations that do not, according to a survey by Gartner ...

Kubernetes has become the backbone of cloud infrastructure, but it's also one of its biggest cost drivers. Recent research shows that 98% of senior IT leaders say Kubernetes now drives cloud spend, yet 91% still can't optimize it effectively. After years of adoption, most organizations have moved past discovery. They know container sprawl, idle resources and reactive scaling inflate costs. What they don't know is how to fix it ...

Artificial intelligence is no longer a future investment. It's already embedded in how we work — whether through copilots in productivity apps, real-time transcription tools in meetings, or machine learning models fueling analytics and personalization. But while enterprise adoption accelerates, there's one critical area many leaders have yet to examine: Can your network actually support AI at the speed your users expect? ...

The more technology businesses invest in, the more potential attack surfaces they have that can be exploited. Without the right continuity plans in place, the disruptions caused by these attacks can bring operations to a standstill and cause irreparable damage to an organization. It's essential to take the time now to ensure your business has the right tools, processes, and recovery initiatives in place to weather any type of IT disaster that comes up. Here are some effective strategies you can follow to achieve this ...

In today's fast-paced AI landscape, CIOs, IT leaders, and engineers are constantly challenged to manage increasingly complex and interconnected systems. The sheer scale and velocity of data generated by modern infrastructure can be overwhelming, making it difficult to maintain uptime, prevent outages, and create a seamless customer experience. This complexity is magnified by the industry's shift towards agentic AI ...