In this techie environment, it is the necessity to be with the new generation and meet up the expectation of the business organization. Almost every organization wants to use the app to execute all of its business operations very accurately. There is a need to understand the customer first and to be interacted to the exact way they want all that needs to be conducted. It's always better to keep the clients on the upper hand and in the ends, it's always their satisfaction that matters. Today, all needs to be automated and ease shall be there to operate all the processes. Mainly, here we focus as the topic itself suggests that due to lightning platform capabilities and it’s features, it is used by most of the developers to increase the functionality and operational values. Salesforce Lightning is designed to enable users to easily understand the functionality and what is actually going on in the lightning bundle, in less time comparatively.
Don't forget to check out: Salesforce Visualforce Vs Salesforce Lightning Component
Avoiding Server Trips
One of the ways to improve Salesforce lightning component performance, the most important aspect is to avoid server trips. There are cases when we need to call apex controller twice like when we need to know queue ID that had been assigned to the owner and there is the requirement to get the custom setting information to derive the behavior of the Lightning Component, so the better way is to consolidate results of apex in a single call and process JSON in the lightning component of the client-side.
Using Storable Action
We can understand this by a real-life example, this approach is helpful when the user is facing slow internet connection when the user is using Facebook and when the user opens it, it indicates past feeds and throws the availability of new feeds; It gives the user the choice to refresh the page to get the newly updated feed. In Salesforce lightning component terms, this approach shows the result that is stored that opposed to making the prompt server trip. The lightning component males the server call (Apex) running in the background and at that point, the cached result is stalled, it will store and revive the segment of lightning. All this is done on the client-side controller of the lighting component, where the action is marked as storable.
Using Lightning Data Service
It is a way in which there is no need to compose Apex test classes for the Lightning Component. Lighting data service is proportional to the standard control components of Salesforce Lightning. It needs more recognition instead of just that it doesn’t require to write a compose Apex. One more advantage is Its ability to utilize a shared cache.
Using Custom Cache
The main advantage of using this custom cache is that the user will have full control over the life cycle of the cache. Besides using lightning data service or storable action, if it is not fulfilling the requirement then we can easily build our custom cache.
Limiting the use of Application event
There are several events which we are aware of- Application or Component events. It is always better to take precautions while using the application events as these are powerful and give more flexibility to communicate with any components in the Application.
Check out another amazing blog by Anjali here: ContentDocument and ContentVersion in Salesforce - An Overview
Limiting Event Handlers
It is preferable to limit the number of event handlers in their lightning component. It helps in avoiding overload as too many event handlers will result in so many event changes and this causes the component making it busy listening to those only.
All these can’t be summed up and implemented in a single Lightning Component as this will create a big mess that one can imagine. According to the requirement and situation, it is advisable to use the improved functionalities and make the performance better than before.
References: Medium, Trailhead