[Question] How to speed up the responsive in EDI NORMAL mode

[xib]

Question
In Edi Normal mode, I notice the cursor movement is not as fast as normal (without win-vind). I understand there could be some overhead win-vind cause to read the key stroke, process, waiting..., but the cursor movement is a bit too slow in my Windows PC.
Is there anything can be configured to reduce the delay?

Note: I frequently keep pressing h, j, k, l to move around a text file and it's slow.