Asiimov resource pack is a stylish and high-quality set of textures created specifically for PvP. To use it, you need a rather powerful computer, since it has a resolution of 128×128 and is not intended to improve performance.
How to install Asiimov resource pack
Make sure you have Optifine installed and working correctly.
Download the resource pack and leave it archived.
Launch Minecraft, go to Settings.
In the ‘Resource Packs’ section, select ‘Open resource pack folder’.
The ‘resourcepacks’ folder will open, copy the archive there.
After copying, the resourcepack will appear in the section of available packages. Click on it to move to the Selected Resource Packs section.
Start a new game or load an old one. Textures will apear in all saves.