Wiehwa,
Do you have a Dayan Zhanchi cube? Using these cubes and learning the OLL & PLL patterns of the CFOP method reduced my average 3x3 times from ~1:15-1:30 down to ~0:45-0:50. 
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Wiehwa,
Do you have a Dayan Zhanchi cube? Using these cubes and learning the OLL & PLL patterns of the CFOP method reduced my average 3x3 times from ~1:15-1:30 down to ~0:45-0:50.