How to solve Too slow translating for too many unicodes ?

[BoumBam]

Hello, I'm using that library to convert unicod to joypixel image.
I have the following text and your library take more than 6 secondes to translate these unicodes to joypixel image.
😍😉😅 good and niceTake a 😅string containing both native unicode😍😉😅 emoji and shortnames, and translate 😍😉😅 it into JoyPixels images for display in a spannable string. An imageSize parameter is used to set the size of the emoji images within the 😍😉 spannable string. A callback is made when all 😅 emoji have been retrieved from 😍😉😅

It takes less than 1 seconde to translate the unicode below to joypixel image.
good and niceTake astring containing both native unicode😍emoji and shortnames, and translate it into JoyPixels images for display in a spannable string. An imageSize parameter is used to set the size of the emoji images within the spannable string. A callback is made when all emoji have been retrieved from the imagePathPNG CDN

How to make the translating faster when the text content too many unicode ?

I'm using 4G on samsung API 21.

With hope you answer.