Transcoding buffer

Hi this may have been asked before or already answered but I could not find it. I am new t using serviio and the whole streaming and server thing. I have everything set up and working great. My only problem is that when im streaming a video that needs to be transcoded it plays maybe the first 30 seconds and then starts to stutter. Im assuming that it has not transcoded more and needs a minute to buffer. I have plenty of processing power and ram, but is there a way to increase the buffer size to a much greater value so I dont have to keep pausing the vides and waiting for the program to transcode my mkv files? Please remember I am new to all of this so please keep that in mind when explaining this or im asking additional questions. Thanks.