[BUG] Improve feed view scrolling performance and behaviour

[boscojwho]

Describe the bug In feed view:

• Scrolling frame rate is low
• Scrolling is at times blocked (This literally also happens in macOS System Settings, too, lol)
• Scroll position is lost when new posts load(?)
• Scroll position shifts when post images load
• Overall, feed view could feel better.

Expected behavior A clear and concise description of what you expected to happen.

Information:

• version 0.1