Spell check context menu slow to open

### Steps to reproduce

1. Type text that the spell checker thinks is wrong
2. Right-click an underlined word
3. The menu takes a few seconds to appear

### Outcome

#### What did you expect?
The menu opens right away after I click

#### What happened instead?
The menu took 2-3 seconds to open

### Operating system

Fedora

### Application version

Element Nightly 2022012501, Olm 3.2.8

### How did you install the app?

AUR package `element-desktop-nightly-bin`

### Homeserver

Synapse 1.51.0

### Will you send logs?

Yes