理想のブログカードでページスピードを上げる方法

/* ブログカード */
/* 出典元：https://vanillaice000.blog.fc2.com/blog-entry-1074.html */

/* カード全体像 */
.blogcard {
    border-radius: 2px;
    border: 1px solid rgb(211, 211, 211);
    box-shadow: 0 10px 6px -6px rgba(0, 0, 0, .1);
    background: white;
    transition: .4s ease-in-out;
    font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial, sans-serif;
}
.b-cite {
    max-width: 100%;
    padding: 12px;
}
.b-link {
    position: relative;
    width: 100%;
}

/* float親要素 */
.blogcard-content {
    margin-bottom: 0;
    overflow: hidden;
}

/* OGP画像 */
.blogcard-image,
.blogcard-image-wrapper,
.blogcard-image-wrapper img {
    width: 100px;
    height: 100px;
    overflow: hidden;
    border-radius: 2px;/*1.5vh*/
}
.blogcard-image,
.blogcard-image-wrapper {
    display: inline-block;
}
.bi-cite {
    float: right;
    margin: 0 0 5px 5px;
}
.bi-link {
    float: left;
}
.blogcard-image-wrapper img {
    object-fit: cover;
    object-position: center center;
    transition: .4s ease-in-out;
}
.biw-cite img,
.biw-cite,
.bi-cite {
    width: 80px;
    height: 80px;
}

/* 記事タイトル */
.blogcard-title {
    /*margin: 0 !important;*/
    font-weight: bold;
    line-height: 1.3;
    color: rgb(51, 51, 51);
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    letter-spacing: 0.1px;
    font-size: 15px;
}
.bt-cite {
    padding-right: 6px;
    -webkit-line-clamp: 2;
    max-height: calc(15px * 1.3 * 2);
}
.bt-link {
    /*padding-top: 7px;*/
    margin-top: 7px;
    margin-bottom: 0;
    padding-right: 14px;
    padding-left: 12px;
    -webkit-line-clamp: 3;
    max-height: calc(15px * 1.3 * 3);
}

/* 引用 */
.blogcard blockquote {
    position: static;
    margin: 0;
    padding: 0;
    box-shadow: none;
    border: 0;
    background: transparent;
}
.blogcard blockquote::before,
.blogcard blockquote::after {
    content: none;
}

/* 記事概要 */
.blogcard-description {
    margin: 4px 0;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    color: rgb(0, 0, 0);
    letter-spacing: 0px;
    font-size: 12px;/*あえて11pxを12pxに変更*/
    font-weight: normal;
}
.bd-cite {
    line-height: 1.5;
    padding-right: 3px;
    max-height: calc(12px * 1.5 * 3);
}
.bd-link {
    display: none;
}

/* フッター */
.blogcard-footer {
    font-size: 11px;
    color: rgb(51, 51, 51);
    font-weight: normal !important;
}
.bf-cite {
    margin-top: 2px;
    margin-bottom: -2px;
}
.bf-link {
    position: absolute;
    margin-top: -24px;
    right: 16px;
}
.blogcard-footer img {
    margin-right: 5px;
    vertical-align: middle;
    border-radius: 2px;
    padding: 0;
}


/* PCでのデザイン */
@media screen and (min-width:768px) {

    .b-cite {
        width: 500px;
    }
    .bd-link {
        overflow: hidden;
        display: -webkit-box;
        letter-spacing: 0.1px;
        line-height: 1.4;
        font-size: 13px;
        padding-right: 16px;
        padding-left: 16px;
        max-height: calc(13px * 1.4 * 3);
    }
    .blogcard-title {
        font-size: 17px;
        line-height: 1.3;
    }
    .blogcard-title a {
        padding-right: 4px;
        letter-spacing: 0.01em;
    }
    .bt-cite,
    .bt-link {
        -webkit-line-clamp: 2;
        max-height: calc(17px * 1.3 * 2);
    }
    .biw-cite img,
    .biw-cite,
    .bi-cite {
        width: 100px;
        height: 100px;
    }
    .biw-link img,
    .biw-link,
    .bi-link {
        width: calc(140px * 1.91);/*　OGP画像がアクセスト比 1：1.91の場合　*/
        height: 140px;
    }

}

figure.blogcard {
    transition: .4s ease-in-out;
}

/* カードマウスホバー変移 */
figure.blogcard:hover {
    box-shadow: none;
    background: #ededed;
    transform: translateY(4px);
    -webkit-transform: translateY(4px);
}
figure.blogcard:hover .blogcard-image-wrapper img {
    transform: scale(1.06);
    filter: brightness(80%);
}

/*　ブログカードここまで　*/

/*　はてなブログカードのcite urlを非表示にする　*/
.hatena-citation {
    display: none;
}