Repro steps:
1. Download "repro_1153358_1930a1" from the link below
2. Switch build target to Android and make sure that "Build App Bundle (Goole Play)" option is checked
3. Build and Run
4. Wait for the game to go to a screen where some characters and pink textures are seen. might need to double click the screen to skip the intro video
5. Check the device log and look for "xxxxxxx.prefab loaded (yyyyyy)" messages
6. Uncheck "Build App Bundle (Goole Play)" and repeat steps 3 - 5

Actual: The time it takes to load the assets when the project is built as an aab is significantly longer

Reproducible with: 2018.4.1f1, 2019.1.5f1, 2019.2.0b5, 2019.3.0a1

Tested and reproduced on these devices:
VLNQA00013, Samsung Galaxy S6 edge+ (SM-G928F), Android 7.0, CPU: Exynos 7 Octa 7420, GPU: Mali-T760
VLNQA00124, Google Pixel 2 XL (Pixel 2 XL), Android 9, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
VLNQA00262, Sony Xperia XZ Premium (G8141), Android 9, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
VLNQA00015, Samsung Galaxy Note8 (SM-N950W), Android 8.0.0, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540

Notes:
- Asset compression method and scripting backend have no influence on this behavior
- This issue doesn't reproduce with just loading an enormous amount of assets
- This issue doesn't reproduce with just loading the exact same assets that are troublesome