TL;DR Problem: Loading taxonomy fields via CSOM for SharePoint list items with many terms is painfully slow. Including taxonomy fields in ViewFields makes the initial query extremely expensive. Solution: Batch-load items in chunks, use FieldValuesForEdit to get raw taxonomy data, and parse the …

The Problem: One-by-One Operations Kill Performance Following up on my previous post about DevProxy and throttling testing, there’s another critical performance issue I see regularly in SharePoint CSOM code: executing operations one by one instead of batching them. Consider this common pattern …

The Problem: Multiple List Queries and Throttling When working with related data across multiple SharePoint lists, developers often fall into the trap of making multiple individual queries: // ❌ Bad approach - Multiple API calls var customers = context.Web.Lists.GetByTitle("Customers"); var …