Question Warzone lowering my 9900k to 4.5-4.8ghz

Nov 1, 2020
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I overclocked my 9900k to 5ghz the temps are good 29-30 in idle and 60-65 in full stress, but when i open warzone the frequency go to 4.5-4.7 ;-; someone have a solution? (i have a MSI z390 MEG ACE)