https://community.graphisoft.com/t5/Modeling/Lag-issue-when-trace-is-on/m-p/257825#M135366 one issue - historically anyway - has been that the trace reference is selected from the View Map as opposed to the Project Map. Trace references fro the PM take less time to process or refresh. Mon, 30 Jan 2017 19:28:14 GMT Aaron Bourgoin 2017-01-30T19:28:14Z https://community.graphisoft.com/t5/Modeling/Lag-issue-when-trace-is-on/m-p/257824#M135365 <DIV class="actalk-migrated-content"><T>My laptop gets very laggy when I am working on one floor and I have the trace tool turned on for a floor above or below. <BR /> I have an I7 processor with 12 gig ram and Nvidia geforce GTX card<BR /> <BR /> It seems to improve when I turn off the Renovation Tool pallet, <BR /> Why would this particular tool cause the laptop to become so sluggish.</T></DIV> Mon, 30 Jan 2017 18:05:15 GMT https://community.graphisoft.com/t5/Modeling/Lag-issue-when-trace-is-on/m-p/257824#M135365 Anonymous 2017-01-30T18:05:15Z https://community.graphisoft.com/t5/Modeling/Lag-issue-when-trace-is-on/m-p/257825#M135366 one issue - historically anyway - has been that the trace reference is selected from the View Map as opposed to the Project Map. Trace references fro the PM take less time to process or refresh. Mon, 30 Jan 2017 19:28:14 GMT https://community.graphisoft.com/t5/Modeling/Lag-issue-when-trace-is-on/m-p/257825#M135366 Aaron Bourgoin 2017-01-30T19:28:14Z