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ORG-10120 Graph rending slower than 9.0 or 8.6. – fixed in 9.1 Sr1
In 9.1, if the project contains curve with large width and large amount of data points (>2000), Origin would run much slower. It doesn't happen for 8.6 or 9.0.
Work around: set system variable @LP=700 by choosing Tools: System Variables menu.ORG-8627 Tick Label and Title position shows difference in 9.1
OPJ saved in 90 or previous release build open in 9.1, tick label or title's position will shift- ORG-9199 Special Point with Leader Line will make Origin 9.0 crash.
Create some opj with leader line and then load the problem in 90 will make Origin crash.