Closed Issue: Conditionally Formatted row delete slow [8309]

Great product, I really appreaciate the time you took to develop this.
 
I am running into a performance issue when deleting a row.
When a range is conditionally formatted and a row is deleted, it is extremely slow and uses a ton of memory.
 
Running the code below with the sample files
Conditional Time : 43.222
Time : 0.061
 
 
DateTime start = DateTime.Now;
using (XLWorkbook b = new XLWorkbook("C:\\conditional_format_test.xlsx"))
{
 
IXLWorksheet sh1 = b.Worksheets.Worksheet(1);
IXLRange insertRange = sh1.Range("B1:C10");
 
sh1.Row(5).Delete();
sh1.Row(5).Delete();
 
b.SaveAs("C:\\conditional_format_test_Modify.xlsx");
}
 
System.Diagnostics.Trace.WriteLine("Conditional Time : " + (DateTime.Now - start).TotalSeconds.ToString());
 
start = DateTime.Now;
using (XLWorkbook b = new XLWorkbook("C:\\test.xlsx"))
{
 
IXLWorksheet sh1 = b.Worksheets.Worksheet(1);
IXLRange insertRange = sh1.Range("B1:C10");
 
 
sh1.Row(5).Delete();
sh1.Row(5).Delete();
 
b.SaveAs("C:\\test_Modify.xlsx");
}
 
System.Diagnostics.Trace.WriteLine("Time : " + (DateTime.Now - start).TotalSeconds.ToString());
Comments: Please try the latest version of ClosedXML (v0.87.1 at this stage). If you still experience the issue, log it on the new GitHub page.