Before i start the process for editing template i want to remind you to get blog template backup.It is very important thing because some time we made mistake while editing template.just follow me in below steps.
1 Go to blogger account
2 go On Template
3Click On Edit HTML
4 Search For
</head>
Copy the Below Script and paste it Before </head>
<style type='text/css'>
<b:if cond='data:blog.pageType != "static_page"'>
<b:if cond='data:blog.pageType != "item"'>
.post {
margin:.5em 0 1.5em;
border-bottom:0px dotted $bordercolor;
padding-bottom:1.0em;
height:50px;
}
.post h3 {
margin:.25em 0 0;
padding:0 0 4px;
font-size:20px;
font-family:Tahoma,Georgia,Century gothic,Arial,sans-serif;
font-weight:normal;
line-height:1.4em;
color:#cc6600;
}
.post h3 a, .post h3 a:visited, .post h3 strong {
display:block;
text-decoration:none;
color:#cc6600;
font-weight:normal;
}
.post h3 strong, .post h3 a:hover {color:#333333;}
.post-body {display:none;}
.post-footer {display:none;}
.comment-link {display:none;}
.post img {display:none;}
.post blockquote {display:none;}
.post blockquote p {display:none;}
h2.date-header {display:none;}
.post-labels {display:none;}
.post-rating {display:none;}
</b:if>
</b:if>
</style>
Now you can save your template
Go to layout to change number of posts on main page.
This is very nice trick to decrease loading time of blog.It also work on label page or archive page and show only title.I hope it is working properly for your blog.if you have any problem regarding, tell me your problem in comment.