Action Matrices with * , does it affect system performance

Hello Friend, 

Need your opinions on using *’s in action matrices,  I am building a matrices and find few actions
which are needed at almost 70% of the places in matrices.

Want to know if you suggest to go ahead with using * or **** at places in action matrices. Please share you experience on using * while
building matrices, also if you faced any performance issue. I am not sure when we make an entry with * how much it affect system performance while calculating all possible actions for an vehicle at given condition.

I am building something like below.

Appreciate your help in advance.

Thanks

Ritesh