How to reproduce:
1. Open the attached 'SkinningTest_.zip' project
2. Check 'Development Build' flag in Build Settings
3. Build for iOS and open the Xcode project
4. Run the project in Test mode and wait until the tests are finished
5. Go to Menu bar > Window > Devices and Simulators
6. Select the 'SkinningText' application from the Installed Applications
7. Select the cog icon below the list > Download Container and save it somewhere
8. Right-click mouse on the downloaded .xappdata file and navigate to Show Package Contents > App Data > Documents
9. Plot the data using the python 3 script on the root of the project (run "python plotter.py" for usage; requires matplotlib);

Expected result: By increasing the number of vertices, the time taken by the skinning related functions increases
Actual result: By increasing the number of vertices, the time taken by the skinning related functions decreases

Reproducible with: 2018.4.26f1, 2019.4.7f1, 2020.1.1f1, 2020.2.0a20

Reproducible with:
- iPhone XR (iOS 13.4.1)
- iPad Air 2 (iOS 11.0.2)
- iPhone 8 Plus (iOS 12.0)
- iPad 9.7 6th gen (iOS 12.1)

Not reproducible with:
- iPhone 11 (iOS 13.4.1)

Notes:
- Screenshots of the issue are attached in Edit
- Attached test results in Edit