Extremely slow when typing (limited to a special row)

Describe the bug
Typing in this particular line is extremely slow if the vim-plugin is activated.
It's only this particular line. Every other codelines work fine.

To Reproduce

1. Open the attached file and type "required [(ngModel)]="amount" at the end of line 18 without vim plugin installed => Everything is fine
2. Install the vim plugin (1.0.8)
3. Restart vscode
4. Repeat step 1

Expected behavior
No delay when typing.

Screenshots

In the video, I'm typing as fast as without the plugin, but there is a huge delay between typing and the characters showing on the screen. When I'm circling the mouse around the cursor position, I'm already finished typing for a few seconds but the character appear slowly one after each other.

It's only in this particular file (attached) and online in line 18.
But I can reproduce the problem on another PC, too.

Environment (please complete the following information):

• Extension Version: 1.0.8
• OS Version: Windows_NT x64 10.0.17134
• VSCode version: 1.31.1

add-expense.component.html.txt

Start by opening the attached add-expense.component.html.txt file in VS Code with Vim extension 1.0.8 and reproducing the delay while typing at the end of line 18. Compare typing with and without the extension on the reported environment. Done means typing that line shows characters without the described delay.