Learn to walk before you can run. No point in blasting through the problems if you get them all wrong.
It seems you got the walking part down and are on the right track.
I was in similar situation when studying for LSAT and I found the following two things to help me a great deal:
1. Do a lot more questions. The more you do them, the more natural the techniques will become and the faster you will be. Make sure that you are doing the questions following your technique and not just guessing, etc. Point is to make the techniques a second nature.
2. Analyze the techniques you use. i.e. specifically for CR questions. Do you read the question or the stimulus first? I found that reading the question first allowed me to better analyze the stimulus. In essence I knew what I was looking for. Both methods are valid though and some people do better with reading stimulus first.
Practice makes it perfect!