[SurfaceView] updateWindow -- OnPreDrawListener, mHaveFrame = true, this = md5e1d4744ef128cd013cac92521f1a8e76.ZXingSurfaceView{4246fe00 V.E..... ........ 0,0-1920,1128}
[Camera-JNI] Allocating callback buffer
[CameraFramework] handleMessage: 16
[Camera-JNI] setHasPreviewCallback: installed:1, manualBuffer:0
[SurfaceView] updateWindow -- OnPreDrawListener, mHaveFrame = true, this = md5e1d4744ef128cd013cac92521f1a8e76.ZXingSurfaceView{4246fe00 V.E..... ........ 0,0-1920,1128}
[Camera-JNI] Allocating callback buffer
[CameraFramework] handleMessage: 16
[Camera-JNI] setHasPreviewCallback: installed:1, manualBuffer:0
[SurfaceView] updateWindow -- OnPreDrawListener, mHaveFrame = true, this = md5e1d4744ef128cd013cac92521f1a8e76.ZXingSurfaceView{4246fe00 V.E..... ........ 0,0-1920,1128}
[Camera-JNI] Allocating callback buffer
[CameraFramework] handleMessage: 16
[Camera-JNI] setHasPreviewCallback: installed:1, manualBuffer:0
[SurfaceView] updateWindow -- OnPreDrawListener, mHaveFrame = true, this = md5e1d4744ef128cd013cac92521f1a8e76.ZXingSurfaceView{4246fe00 V.E..... ........ 0,0-1920,1128}
[Camera-JNI] Allocating callback buffer
[CameraFramework] handleMessage: 16
[Camera-JNI] setHasPreviewCallback: installed:1, manualBuffer:0
[SurfaceView] updateWindow -- OnPreDrawListener, mHaveFrame = true, this = md5e1d4744ef128cd013cac92521f1a8e76.ZXingSurfaceView{4246fe00 V.E..... ........ 0,0-1920,1128}
[Camera-JNI] Allocating callback buffer
[CameraFramework] handleMessage: 16
[Camera-JNI] setHasPreviewCallback: installed:1, manualBuffer:0
[CameraFramework] Camera framework getParameters =3dnr-mode=on;3dnr-mode-values=on,off;afeng-max-focus-step=1023;afeng-min-focus-step=0;antibanding=off;antibanding-values=off,50hz,60hz,auto;auto-exposure-lock-supported=true;auto-whitebalance-lock-supported=true;brightness=middle;brightness-values=low,middle,high;brightness_value=0;burst-num=1;cap-mode=normal;cap-mode-values=normal,face_beauty,continuousshot,smileshot,bestshot,autorama,mav,asd,motiontrack;capfname=/sdcard/DCIM/cap00;contrast=middle;contrast-values=low,middle,high;cshot-indicator=true;cshot-indicator-supported=true;dynamic-frame-rate=true;dynamic-frame-rate-supported=true;edge=middle;edge-values=low,middle,high;effect=none;effect-values=none,mono,negative,sepia,aqua,whiteboard,blackboard,posterize,nashville,hefe,valencia,xproll,lofi,sierra,walden;eng-mfll-e=false;eng-mfll-s=true;eng-s-shad-t=0;eng-shad-t=0;exposure-compensation=0;exposure-compensation-step=1.0;face-beauty=false;face-beauty-supported=true;fb-enlarge-eye=0;fb-enlarge-eye-max=4;fb-enlarge-eye-min=-4;fb-extreme-beauty=true;fb-extreme-beauty-supported=false;fb-face-pos=-2000:-2000;fb-sharp=0;fb-sharp-max=4;fb-sharp-min=-4;fb-skin-color=0;fb-skin-color-max=4;fb-skin-color-min=-4;fb-slim-face=0;fb-slim-face-max=4;fb-slim-face-min=-4;fb-smooth-level=0;fb-smooth-level-max=4;fb-smooth-level-min=-4;fb-touch-pos=-2000:-2000;feature-max-fps=24@VFB+EIS;flash-duty-max=1;flash-duty-min=0;flash-duty-value=-1;flash-step-max=0;flash-step-min=0;focal-length=3.5;focus-distances=0.95,1.9,Infinity;focus-fs-fi=0;focus-fs-fi-max=65535;focus-fs-fi-min=0;focus-mode=auto;focus-mode-values=auto,macro,infinity,continuous-picture,continuous-video,manual,fullscan;horizontal-view-angle=63;hsvr-prv-fps=30;hsvr-prv-fps-values=0,30,0,0;hsvr-prv-size=1280x720;hsvr-prv-size-values=0x0,1280x720,0x0,0x0;hue=middle;hue-values=low,middle,high;iso-speed=auto;iso-speed-values=auto,100,200,400,800,1600;jpeg-quality=100;jpeg-thumbnail-height=128;jpeg-thumbnail-quality=100;jpeg-thumbnail-size-values=0x0,160x128,320x240;jpeg-thumbnail-width=160;m-sr-g=0;m-ss=0;max-exposure-compensation=3;max-num-detected-faces-hw=15;max-num-detected-faces-sw=0;max-num-focus-areas=1;max-num-metering-areas=9;max-num-ot=1;max-zoom=10;mfb=off;mfb-values=off,mfll,ais;min-exposure-compensation=-3;mnr-e=0;mnr-s=true;mtk-123-shad-s=true;mtk-awb-s=true;mtk-cam-mode=0;mtk-shad-s=true;picture-format=jpeg;picture-format-values=jpeg;picture-size=3264x2448;picture-size-values=320x240,640x480,1024x768,1280x768,1280x960,1600x960,1600x1200,2048x1536,2560x1920,2880x1728,3264x2448,3600x2160;pip-fps-zsd-off=30;pip-fps-zsd-on=24;preferred-preview-size-for-video=1920x1080;preview-format=yuv420sp;preview-format-values=yuv420sp,yuv420p,yuv420i-yyuvyy-3plane;preview-fps-range=5000,60000;preview-fps-range-values=(5000,60000);preview-frame-rate=30;preview-frame-rate-values=20,15,24,30,60,120;preview-size=640x480;preview-size-values=176x144,320x240,352x288,480x320,480x368,640x480,720x480,800x480,800x600,864x480,960x540,1280x720,1280x768,1280x960,1440x1080,1600x960,1600x1200,1920x1080,1920x1088;rotation=0;saturation=middle;saturation-values=low,middle,high;scene-mode=auto;scene-mode-values=auto,portrait,landscape,night,night-portrait,theatre,beach,snow,sunset,steadyphoto,fireworks,sports,party,candlelight,hdr;sen-mode-s=0;sensor-type=252;smooth-zoom-supported=true;sr-awb-s=true;sr-shad-s=true;stereo-depth-af=off;stereo-depth-af-values=on,off;stereo-distance-measurement=off;stereo-distance-measurement-values=on,off;stereo-image-refocus=off;stereo-image-refocus-values=on,off;sv1-s=3;sv2-s=3;vdr-cc2m-s=false;vdr-r=0;vdr-r2m-s=true;vdr-r4k2k-s=false;vertical-view-angle=49;vhdr-s=0;video-frame-format=yuv420p;video-hdr=off;video-hdr-values=off,on;video-size=640x480;video-size-values=176x144,480x320,640x480,864x480,1280x720,1920x1080,3840x2160;video-snapshot-supported=true;video-stabilization=false;video-stabilization-supported=true;vrd-mfr-e=true;vrd-mfr-high=30;vrd-mfr-low=15;vrd-mfr-max=30;vrd-mfr-min=15;vrd-mfr-s=true;whitebalance=auto;whitebalance-values=auto,inca
[SurfaceView] updateWindow -- OnPreDrawListener, mHaveFrame = true, this = md5e1d4744ef128cd013cac92521f1a8e76.ZXingSurfaceView{4246fe00 V.E..... ........ 0,0-1920,1128}

I probably couldn't say anymore, not having your barcodes. It will either scan in milliseconds or not at all. It's either unscannable due to a problem with the code, your camera hardware, or just a limit of the software. You can propose a PR if you have a change to make but otherwise there's not really an action here -- YMMV.

The Barcodes are from the back of drivers licenses.

It can't be a problem with the Barcodes because both Manatee and PDF417.Mobi scan them

Each scan has been done with the same hardware, at the same distance.

It really can't be a software limitation as other companies have developed closed source software which can scan the codes in a few miliseconds.

From what I am seeing with the differences in the code the other solutions get a clear image of the barcode, then freeze there and use that image

XZing seems to get a clear image of the barcode and then does a focus and tries again and again instead of using the clear image when it is in focus

I'm not saying it can't be done; I'm saying the software here might not get it done, and there is no further development work here, unless you are yourself proposing a code change. Please use other software if it works better for you in this case.