img2img SDXL&Pony generation starts imedietly, txt2img instead will hang for 60 seconds or more before starting the generation? Why? How to fix?

[dilectiogames]

Generation time is also way slower on txt2img at leas 50% slower or more

Anyone knows how to fix this?

Old nvidia card here, 6Gb

generation time for img2img at 1264x700 is 22 seconds with generation starting after 5 seconds

for txt2img same settings and dimensions around 30seconds to 1 minute of hanging doing nothing then 1 minute and 10 seconds of generation time