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In this work, we explore the use of strained InGaAs/AlGaAs QWs and benchmark the performance against conventional GaAs/AlGaAs QWs.VCSELs with an optimized InGaAs/AlGaAs QW active region have a modulation bandwidth of 20 GHz at 25degC and 15 GHz at 85degC and have enabled error-free transmission over 50 (100) m multimode fiber up to 32 (25) Gb/s at a bias current density as low as 11 kA/cm2 under direct current modulation.