Run a speed test on your page.
Before speed up for your wordpress blog, you just test your current speed. And here are 3 best tool to do that:
Choosing Best Web Hosts for your WordPress Blog
The most important thing makes your blog loading slowly is the bad hosting. A right web host will help your blog increase performance for both readers and robots of search engines. If you saved about $1,000 for investing to your blog, you should buy a dedicated server with a fast processor & heaps of ram to build your blog. Here are top 5 best VPS Services: