Optifine is a Minecraft optimization mod. It allow additional items to my resources packs, also it allows Minecraft to run faster and look better with full support for HD textures and many configuration options.
HOW TO DOWNLOAD OPTIFINE
In this case we are going to download the last version of Optifine 1.14.4 for Minecraft 1.14.4 the installation is the same for any version.
1) Start by downloading the appropriate version of optifine from this link:
Wait 6 seconds and a skip button will appear, start download:
HOW TO INSTALL OPTIFINE
1) Click on the installer you just downloaded, which will automatically install Optifine for Minecraft: