I'm using a Node application to serve dynamic XML responses, and I wanted to know if using a bundler or build system will improve processing time or help with optimizations?

In our code I'm beginning to noticing large portions of our application depends on the same libraries and modules.

Given our development experience and available skillset, our goal is to save as much processing power and time as possible. Would a bundler optimize our application better than we could? When designing these applications do we want to minimize the amount of require calls or does it not matter? Where can I even find resources for fine-tuning our setup to squeeze as much performance out of our implementation as possible?

Any help is appreciated. Thank you!