Here are some ways to optimize Excel performance by minimizing errors in your formulas:

* Reduce Complexity: Break down complex formulas into smaller, more manageable steps. This can improve calculation speed and make troubleshooting easier.
* Avoid Volatile Functions: Functions like TODAY() or RAND() recalculate every time the worksheet is opened or changed, impacting performance. Use alternatives like =DATE(YEAR(TODAY()),MONTH(TODAY()),DAY(TODAY())) for the current date or explore data validation for random selections.
* Minimize Array Formulas: Array formulas can be powerful but resource-intensive. If possible, achieve the same result with standard formulas or helper columns.
* Limit Nested Functions: Excessive nesting of functions can slow down calculations. Consider restructuring your formulas to minimize nesting or explore helper columns for intermediate calculations.
* Use Clear Cell References: Ensure your cell references are accurate and avoid typos. Double-check for extra spaces or incorrect capitalization.
* Leverage Error Handling Functions: Functions like IFERROR can gracefully handle errors in formulas, preventing calculation errors and improving overall performance.
* Catch Circular References: Circular references occur when a formula directly or indirectly references itself, creating an infinite loop and slowing down Excel. Use the Error Checking tool to identify and fix them.
* Use Named Ranges: Assigning clear names to cell ranges improves readability and reduces the risk of errors caused by referencing incorrect cells.

By following these tips and minimizing errors in your formulas, you can significantly improve the performance and responsiveness of your Excel spreadsheets.