Disable event buffer SDL2 when holding down a key - c++

Question

I'm currently developing a server-client game and I'm having trouble with SDL2 event queue. The following code is used to move the character:
void handleEvent( SDL_Event& e) {
if( e.type == SDL_KEYDOWN ) {
switch( e.key.keysym.sym ) {
case SDLK_LEFT:
// Do something and send key to server
break;
case SDLK_RIGHT:
// Do something and send key to server
break;
case SDLK_UP:
// Do something and send key to server
break;
}
}
else if( e.type == SDL_KEYUP ) {
switch( e.key.keysym.sym ) {
case SDLK_LEFT:
// Do something and send key to server
break;
case SDLK_RIGHT:
// Do something and send key to server
break;
case SDLK_UP:
// Do something and send key to server
break;
}
}
}
There seems to be some kind of event buffer when a key is being hold down. Basically if I rapidly tap the arrow keys, the keys are instantly sent to the server. But when I hold down the arrow I instantly get only one key message (the initial tap one) and after 200ms I start getting the stream of keys. The behaviour I am aiming for is to always get the stream of the key being pressed at that time asap.
I am purposely avoiding the use of (e.key.repeat == 0) because I need to send every key press to the server to update the server's character logic object position correctly.