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--></style></head><body lang=EN-NZ link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Xavier<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Sorry to hear your speed issues are even worse than mine. I got a fast device mainly to reduce lag with Therion and opening the exported pdfs. Not so much because Therion was slow but because it is where I spend my most precious discretionary screen time. Other than the start-lag issue, comparison of my old and new therion.log files showed a typically 2 – 5 times speed increase.<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>> </span></b>For me there is a 6 seconds lag to open the cmd window, but also a 6 seconds lag at the end when the cmd window is closed and Xtherion reads the output to display it in its interface. <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:0mm;margin-right:0mm;margin-bottom:12.0pt;margin-left:36.0pt'><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>At least I only have the lag at the start of the process. The transition from cmd window to XTherion for me is instantaneous. Although I recall on rare occasions an inordinately long end-lag, probably back with Windows 10. Maybe the content of the project that has just been compiled impacts on that?<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'>> However, my main problem is the huge delay (which can be of several minutes) for xtherion to display a large th2 file : it takes 75 seconds to display a th2 of 2500 lines of text (that is 538 commands). During that time, xtherion says "Processing commands ..."<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:0mm;margin-right:0mm;margin-bottom:12.0pt;margin-left:36.0pt'><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>That is a disaster. I just checked a 3500 line th2 file, the largest I could quickly find. It takes 6 s to complete the entire opening process (‘opening image’ - which are 5 large PocketTopo xvi files and ‘processing commands’). Moving an object to another scrap is about 1-2 s.<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>So broadly, except maybe in Yann’s case, is it that Windows 11 has added delays (more, or less, extreme depending on user) to Therion that were not present with Windows 10?<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>I have always thought of Therion as placing minimal load on a device. Has anyone come up with minimum, recommended and optimum processor, graphics and ram parameters (other than more is better)?<o:p></o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Bruce<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>