Now its stuck at the loading screen saying Importing bootstrap blockchain data file for about 45 minutes
In that case, I would completely clear out the data folder (except for your wallet. dat) and start again.
Haha you guys are so funny,you are even worse than the media with its bitcoin obituaries. Today is a week that this coin even exists. Think about that for a moment
Too fully take advantage of optiminer's improvements you need a modern cpu that supports aes and avx2. For me on a E3-1240 i managed to double the hashrate with it. using 4 cores , on ubuntu 14. In your case using 2 cores yields more hash, the higher the combined hashrate the better. i assume you have an old dual core cpu )