javascript faster ajax calls

Hi, i wanted to display the metacritic score of the games in the homepage near their names.
(Check the image below to see what i see now.)

I've used the unofficial metacritic api at this page API and this is my code :

$(document).ready(function() {
    $('.giveaway__heading__name').each(function() {
        var ga = $(this);

        var t = ga.text();
        if(t.toLowerCase().indexOf('edition') > -1) {
           t = t.substring(0, t.indexOf(':'));
        }

        $.ajax({
            url: "https://byroredux-metacritic.p.mashape.com/find/game",
            type: "POST",
            headers: {
                "X-Mashape-Key": key
            },
            data: {
                title: t,
                platform: "0"
            },
            dataType: "json"

        }).then(function(data) {
            var score = data.result.score;
            if (score) {
                ga.append('<span style="margin-left:7px;color:#A5D277">(' + score + ')<span>');
            }
        });
    });
});

(Sorry if my code is bad, i don't have so much experience with web development)

Due all the ajax calls the code is slow and it takes a few seconds to load the scores and i don't think those api have an option for asking for multiple games at once.

Do you have any suggestion on how to improve the speed of this script?

Thanks.

View attached image.