Modding Minecrafts Minecart Speed in 1.20 via json file

Question

so first of all i'm a modding beginner. I'm making a datapack for 1.20 and now i want to make minecarts move faster (20 blocks per second). I have changed some crafting recipes via json files just like the example below. is there a way to manipulate the minecart speed like this and if so, how, and if not, how?

{
    "type": "minecraft:crafting_shaped",
    "category": "blocks",
    "pattern": [
        "a#a",
        "b#b",
        "a#a"
    ],
    "key": {
        "a": {
            "item": "minecraft:iron_nugget"
        },
        "#": {
            "item": "minecraft:stick"
        },
        "b": {
            "item": "minecraft:gold_nugget"
        }
    },
    "result": {
        "item": "minecraft:powered_rail",
        "count": 16
    }
}