4MB VRAM Intel HD 620 OpenCore 0.6

I've been trying to use the recommended AAPL,ig-platform-id from dortania and whatevergreen, but it still gives me 4MB, does this contributes to my stuttering experience when using browser ?

my specs:
Acer E5-475G
Intel i5-7200U
Intel HD 620
8GB DDR4 RAM
Catalina installed on WD green m.2 sata ssd 120GB

https://preview.redd.it/ijsdhiutsaf51.png?width=1366&format=png&auto=webp&s=706b8a12bc6fbb3fb43ad633426be7d2564ba192

https://preview.redd.it/3iqdfeutsaf51.png?width=1366&format=png&auto=webp&s=e96bd05568532b39508226f6053f9cab72624a6b