Optimize banner rendering performance to improve Lighthouse score

[coderabbitai]

In PR #3312 (#3312), optimizing the banner rendering performance was suggested to improve the Lighthouse performance score.

Reference comment: #3312 (comment)

Requested by @akshatnema.

[akshatnema]

Anyone can take this issue up.

[helios2003]

Hi @akshatnema, I would like to take up the issue, but my concern is whether there is any need for optimization. Because "banners" are an array of JSON objects with only a few key-value pairs, is optimization required to further improve the rendering process?

[Manancode]

@akshatnema sir did the suggested changes here but looks like the lighthouse score doesn't have significant changes.
I Will try locally with some more changes/new methods.