Block reward halving quickly

if(pindexBest->nHeight <= 10000) {
        nSubsidy = 25000 * COIN;                                 
   } else if(pindexBest->nHeight <= 20000) {
        nSubsidy = 12500 * COIN;                     
    } else if(pindexBest->nHeight <= 40000) {
        nSubsidy = 6250 * COIN;
    } else if(pindexBest->nHeight <= 60000) {   //start POS
        nSubsidy = 3125 * COIN;
    } else if(pindexBest->nHeight <= 100000) {   
       nSubsidy = 1500 * COIN;
    } else if(pindexBest->nHeight <= 200000) {
        nSubsidy = 750 * COIN;                    //697 500 000
    } else {
        nSubsidy = 1 * COIN;
    }