Plosives create short low-frequency bursts that can hit peaks long before the voice sounds loud.
Cause
Low-frequency bursts dominate the peak meter
P and B sounds can send a burst of air into the microphone. That burst may not sound like useful voice level, but it can trigger compressors, limiters, and true-peak warnings.
If you normalize or limit around those spikes, the rest of the voice can end up quieter than expected.
Check
Inspect peaks against speech loudness
Watch peak and short-term loudness while scanning plosive-heavy phrases. A few bursts should not define the whole voiceover level.
Check the exported file too, because steep plosives can create encoding and true-peak issues.
Fix
Control plosives before final level
Use mic technique, clip gain, high-pass filtering, or targeted plosive repair before compression and limiting. Then set final loudness from the actual speech body.
Meter Core helps show whether peak control is improving voice consistency or only reacting to plosive bursts.