The　strong　scattering　and　time　variability　of　dynamic　scattering　media　pose　a　major　challenge　to　optical　focusing　and　imaging　applications.　In　this　paper,　a　feedback　wavefront　shaping　technology　based　on　digital　micromirror　devices　is　proposed,　which　combines　the　hardware　design　and　algorithm　optimization.　Through　a　new　hardwaretriggered　image　acquisition　system　and　dynamic　subgroup　genetic　algorithm,　the　image　acquisition　rate　and　focusing　efficiency　are　significantly　improved,　and　the　light　is　quickly　focused　in　dynamic　turbid　water.　The　imaging　speed　is　about　34.89　times　that　of　the　traditional　method　based　on　a　software-triggered　image　acquisition　system　and　genetic　algorithm.　The　experimental　results　of　focusing　through　a　milk　solution　show　that　this　technique　has　a　remarkable　effect　in　improving　the　efficiency　of　dynamic　focusing　and　the　light　intensity　of　focusing　region,　which　provides　an　effective　optimization　strategy　for　optical　imaging　technology　through　a　dynamic　scattering　medium　in　the　future.　©　2025　Optica　Publishing　Group.　All　rights,　including　for　text　and　data　mining　(TDM),　Artificial　Intelligence　(AI)　training,　and　similar　technologies,　are　reserved.