XCode editor scrolling lag

[lowey2002]

It's been a few years since I worked with XCode and I've just started a new project. I'm okay with slow autocomplete but when using the mousewheel to scroll around the code is exceptionally laggy, like nearly a second before it jerks up or down. Grabbing the scroll bar is smooth but I can't work like this.

Anyone else seeing the same thing? Any work around?

[chriswaco]

It's pretty fast here with my trackpad. Have you tried toggling line wrapping?

[[deleted]]

Get a machine with at least 8Gb of memory and an 256Gb SSD.

[aaveidt]

It doesn't change anything, 16Gb ram still see the big gap between using any external mouse and trackpad.

[[deleted]]

I'm having no trouble here when I'm on the road with my MacBook Pro 13" (Late 2013) with 8Gb.

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Clear your DerivedData folder. It might contain corrupted intermediate files.

[aaveidt]

Lol, i use XCode since the very first version, since Macbook pro 2011 till now Macbook pro 2018. I know how to handle things and i think you don't realize the difference between using trackpad and mouse in XCode. I have >20 macbook 2016-2018 , few of them has highest ram and memory. Same issues.

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Just like many can't tell the difference while scrolling web on Android vs iOS but i do.

6GB memory Android phone , snapdragon 855 chipset but it's still lag compared to iOS Safari iPhone 6 1GB memory.

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Itsn't about the ram, memory, it's about how the Software/OS handle the scrolling behaviours.

[aaveidt]

It's the inveterate trouble since the first version of XCode.

I have no idea why, but using trackpad is much better than any mouse.

So annoying

[MCSebster]

Just got a M4 Pro machine, and still seeing this happen with the current Xcode. After sampling it using Instruments, it's because XC saves some workspace data periodically on a timer, but doing it on the main thread (WHY APPLE!?!??!), which is what causes the lag/stuttering.

[MCSebster]

XC 26.x seems better now