Hello,
1. Please add this code in Theme Options > Custom css:
.header-wraper .blog-description, .navbar-header.navbar-right {
width: 25%;
}
2. Try to change Row stretch options http://prntscr.com/gmiumy
3. You may show products in Gallery (only 1 row) or in a grid (more as 1 row), if you want to show 3 row of products gallery try to use 3 elements on page with different order ways.
Regards