I am trying to build DEM using Python API, see attachment for Python script. When I run it takes a long time to run the tile rasterizing step (see code below), but when I try to do the same in GUI (all default settings) I don't see the tile rasterizing. What am I doing extra in the script that is causing this step and makes it run longer, also how can build DEM fast similar like it is in the GUI. Am I running any extra unnecessary steps for build DEM?
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tile 113-131 done in 0.614839 sec (rasterize: 0.02302 filter: 0.200145 save: 0.371952)
tile 113-231 done in 0.613283 sec (rasterize: 0.022163 filter: 0.200421 save: 0.370987)
tile 114-113 done in 0.617793 sec (rasterize: 0.0232 filter: 0.199837 save: 0.375072)
tile 114-213 done in 0.611413 sec (rasterize: 0.022648 filter: 0.200086 save: 0.368932)
tile 115-95 done in 0.614554 sec (rasterize: 0.022965 filter: 0.200058 save: 0.371816)
tile 115-195 done in 0.611911 sec (rasterize: 0.023133 filter: 0.19997 save: 0.369113)
tile 116-77 done in 0.612595 sec (rasterize: 0.022527 filter: 0.202365 save: 0.367808)
tile 116-177 done in 0.613452 sec (rasterize: 0.022765 filter: 0.19989 save: 0.371068)
tile 117-159 done in 0.614387 sec (rasterize: 0.022234 filter: 0.200225 save: 0.372266)
tile 118-141 done in 0.614627 sec (rasterize: 0.02273 filter: 0.200033 save: 0.371944)
tile 118-241 done in 0.612317 sec (rasterize: 0.022558 filter: 0.200036 save: 0.370077)
tile 119-123 done in 0.610904 sec (rasterize: 0.02335 filter: 0.199921 save: 0.36791)
tile 119-223 done in 0.617177 sec (rasterize: 0.022307 filter: 0.205938 save: 0.369283)
tile 120-105 done in 0.612416 sec (rasterize: 0.022568 filter: 0.200073 save: 0.370081)
tile 120-205 done in 0.616374 sec (rasterize: 0.023379 filter: 0.202949 save: 0.370262)
tile 121-87 done in 0.619316 sec (rasterize: 0.025757 filter: 0.199897 save: 0.373795)
tile 121-187 done in 0.613139 sec (rasterize: 0.023315 filter: 0.199848 save: 0.370311)
tile 122-169 done in 0.612195 sec (rasterize: 0.022506 filter: 0.20008 save: 0.369931)
tile 123-151 done in 0.610402 sec (rasterize: 0.022369 filter: 0.200234 save: 0.368127)
tile 123-251 done in 0.611297 sec (rasterize: 0.02265 filter: 0.200287 save: 0.368706)
tile 124-133 done in 0.614252 sec (rasterize: 0.022804 filter: 0.199884 save: 0.371685)
tile 124-233 done in 0.615146 sec (rasterize: 0.022673 filter: 0.200214 save: 0.372461)
tile 125-115 done in 0.61507 sec (rasterize: 0.022794 filter: 0.203517 save: 0.369073)
tile 125-215 done in 0.608999 sec (rasterize: 0.022581 filter: 0.199783 save: 0.366935)
tile 126-97 done in 0.626545 sec (rasterize: 0.022903 filter: 0.200047 save: 0.37092)
tile 126-197 done in 0.611738 sec (rasterize: 0.023295 filter: 0.200674 save: 0.368063)
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