Visual Studio 2015 is very slow

Question

I just finished the installation and the whole IDE is super slow. It seems like it\'s making some kind of heavy CPU calls in the background where the whole IDE literally fre

Answer 1

It is most likely because you uninstalled some SQL Server components Visual Studio is using. Though Visual Studio still works, it's very slow.

Just go to "Programs and Features" in the Control Panel and repair Visual Studio. The needed Visual Studio components will be installed again and Visual Studio will be back as fast as before.

Answer 2

I have experienced very slow edits with Visual Studio 2015 Community Edition especially while working with HTML (and Razor as well) and JavaScript. I was able to resolve the issue by removing the references in the "Scripts/_references.js" file of my ASP.NET MVC project. Furthermore, I disabled autosyncing in that file by adding this to the top of the _references.js file.

This solution causes Visual Studio's IntelliSense to not load show all the JavaScript references available. However, ReSharper's IntelliSense will work perfectly fine and fast.

/// <autosync enabled="false" />

Answer 3

Update PC Drivers

In my case, and I had bad lag doing the simplest of things, it helped to update my pc drivers. The system drivers are the foundation for everything.

I was fortunate that I have Dell and they have awesome website support to do this. I googled

dell <my model name> update drivers

or go to the drivers home page

I let it update all the drivers it wanted to (Dell driver update is pretty much automatic).

Much of the lag seems to have gone away.

Answer 4

Same issue here, Visual Studio 2015 Pro Update 2 on a brand new machine. The editor was extremely slow, typing like chewing gum.

The reason was ESET NOD32 Antivirus 9. It has a thing called "Host Intruder Prevention System (HIPS)" enabled by default. I don't know how useful it this, but it can be disabled or I just added a rule, to allow devenv.exe.

Now it's fine.

Answer 5

If you're suffering due to ReSharper then below mentioned options may help.

Visual Studio configuration:

ReSharper may conflict with the other Visual Studio addins and extensions - in case of slowdowns, please try to disable the other addins one-by-one and check if it helps to speed up Visual Studio with ReSharper. Here are some examples of known compatibility issues with other addins:

Productivity Power Tools

VSCommands

Also, you may try turning off the following options under "Tools | Options | Environment | General": Automatically adjust visual experience based on client performance Use hardware graphics acceleration if available

ReSharper configuration.

Though ReSharper provides quite a few powerful and useful features, some of them can be tweaked or turned off in terms of improving the speed. Here are some examples:

Turn off Solution Wide Analysis (SWA) in "ReSharper | Options | Code Inspection | Settings", 'Analyze errors in whole solution' checkbox

Switch back to Visual Studio IntelliSense in "ReSharper | Options | Environment | IntelliSense | General" dialog Clearing caches for current solution in "ReSharper | Options | Environment | General" dialog

Here are the links:

• Visual Studio with ReSharper is slow

• Speeding up ReSharper (and Visual Studio)

Answer 6

Try turning off the ReSharper Code Inspection from menu Options → Code Inspection → Setting and choosing Visual Studio IntelliSense (menu Option → Intellisense → General) instead of ReSharper IntelliSense will make it much faster.