I mostly had a lag with the animations when switching scenes and apps. This could always be solved by hard reset (just did one yesterday), which I mainly did because of the Other space issue.
But I permanently have the scrolling stutter, mostly in long lists with seperate large/complex blocks/elements, just as in
Facebook/Beta app's timeline,
Board Express' thread view,
Metro Tube's subscription feed etc.
In lists like
Tweet It's timeline,
Disqus' thread view,
or any Inbox view,
scrolling is just smooth.
Could it be a problem with a specific list type in WP's basic programming? I know nothing about any Lumia's having this issue, so if HTC or the mobile operators branding's just set one semicolon wrong in the code ...
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