First question is… how long is your current approach? Do you feel it's too long for you to handle at the present time? With this lost speed you will be slower at the board, and on top of this if you are fighting too long of an approach, your jumps will continue to be off.
Now, first focus on mastering your approach. You mentioned new steps…don't worry about the board right now. Break this approach down and concentrate on mastery here…off the runway (work on it on the track to start). If you haven't done this already, I'd advise you to think about implementing a 'tempo count' for your approach steps. Start slowly with this and simply count every takeoff foot as you proceed down the runway. If you have a 9 step approach (18 total strides), you'll pop on '9' If this feels uncomfortable at first, do it with a light jog at first, then progressively increase your speed. It will take practice. I have had much success with this both as an athlete and coach.
This will, in time, eliminate the 'hesitation' in your approach, especially in that crucial time at the board.
Now, your takeoff is a direct result of what has happened on your full approach, so that is the first thing I believe you should focus on…however, it is of course directly correlated to the penultimate step (which is a whole different animal!!) that isn't worth getting into right here. Do think about this penultimate step though, and ask yourself if you are performing the proper lowering that you will need to have a successful 'Pop.'
As far as runway speed goes, there are a couple things you can do to progressively get this speed back. If you don't perform Flying 30's in your current workouts, I'd strongly advocate for them. These are great for work on your MaxV and I think they're dynamite for jumpers (since they concentrate on a short burst of speed). Also, 10,20 m accelerators are helpful here as well. The 10m short accels. will help you with the start of your approach in particular (where the first 4-7 strides are very key) to a successful jump.
Lastly, if you want to 'fix up' your takeoff, remember to fix your approach first, gaining your speed back while you work on this, and perform some takeoff drills like a 'Run Run Jump' or a pop up drill off a box or board if you have access to one. I'm sure you have worked various drills in the past with your team (??) but there are many to choose from.
Hope some of this helps in some way for you. Just flat out work hard, which I'm sure you've been doing, and these things will come full circle.