--- title: Why ASP.NET Core Feels Fast Locally but Slow in Production description: ASP.NET Core applications often run fast locally but slow in production due to environment differences, resource constraints, database query inefficiencies,... canonical: https://daily.dev/posts/why-asp-net-core-feels-fast-locally-but-slow-in-production-mtgpu8lqk twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Why ASP.NET Core Feels Fast Locally but Slow in Production | daily.dev og:description: ASP.NET Core applications often run fast locally but slow in production due to environment differences, resource constraints, database query inefficiencies,... og:url: https://daily.dev/posts/why-asp-net-core-feels-fast-locally-but-slow-in-production-mtgpu8lqk og:image: https://api.daily.dev/og/posts/mtGpU8LQK.png og:image:alt: Why ASP.NET Core Feels Fast Locally but Slow in Production og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Why ASP.NET Core Feels Fast Locally but Slow in Production **[C\# Corner](https://daily.dev/sources/csharpcorner)** · 4 min read · 42 upvotes · 0 comments ## Summary ASP.NET Core applications often run fast locally but slow in production due to environment differences, resource constraints, database query inefficiencies, async/await misuse, excessive logging, cold starts, improper caching, and network latency. The guide covers common bottlenecks like EF Core N+1 queries, thread pool starvation from blocking calls, logging overhead, in-memory cache limitations in scaled environments, and HttpClient socket exhaustion. It provides code examples showing problematic patterns versus optimized alternatives, emphasizing measurement-driven optimization: timing requests and database queries, checking thread pool health, reducing allocations, and implementing distributed caching before scaling infrastructure. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [How to Fix Slow EF Core Queries: Practical Performance Tuning](https://daily.dev/posts/how-to-fix-slow-ef-core-queries-practical-performance-tuning-effrdqtga) · Syncfusion · 38 upvotes · 0 comments --- Tags: [#performance](https://daily.dev/tags/performance), [#database](https://daily.dev/tags/database), [#.net](https://daily.dev/tags/.net), [#c#](https://daily.dev/tags/c#), [#aspnetcore](https://daily.dev/tags/aspnetcore) [View this post on daily.dev](https://daily.dev/posts/why-asp-net-core-feels-fast-locally-but-slow-in-production-mtgpu8lqk) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Why ASP.NET Core Feels Fast Locally but Slow in Production","url":"https://daily.dev/posts/why-asp-net-core-feels-fast-locally-but-slow-in-production-mtgpu8lqk","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/why-asp-net-core-feels-fast-locally-but-slow-in-production-mtgpu8lqk"},"datePublished":"2026-01-15T03:40:03.033Z","dateModified":"2026-01-15T03:40:24.414Z","description":"ASP.NET Core applications often run fast locally but slow in production due to environment differences, resource constraints, database query inefficiencies,...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/81f698b062e81502c45df6b257ae3843?_a=AQAEulh","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/81f698b062e81502c45df6b257ae3843?_a=AQAEulh","isAccessibleForFree":true,"articleSection":"C# Corner","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"C# Corner","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/ada2d584df6241748fc4e71878dc70a3","url":"https://daily.dev/sources/csharpcorner"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/why-asp-net-core-feels-fast-locally-but-slow-in-production-mtgpu8lqk","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":42},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"performance,database,.net,c#,aspnetcore","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"C# Corner","item":"https://daily.dev/sources/csharpcorner"},{"@type":"ListItem","position":3,"name":"Why ASP.NET Core Feels Fast Locally but Slow in Production"}]} ```