Turan,
I am not sure if it is due to the connection speed. From the output, it looks the connect went fine and you were able to send and recieve data. I suspect insufficient stack size allocated. Can you check the stack size?
Open the .cfg file in graphical view (double click to open).
Browse through TI-RTOS Welcome Page > System Overview > TI-RTOS Kernel > Runtime page.
Increase the stack value (highlighted below):
For changing Task priorities:
Again in the opened .cfg file,
Browse through TI-RTOS Welcome Page > System Overview > TI-RTOS Kernel > System Overview > Task > Instance
Change the priority value per task(highlighted below) (in your case, there should be multiple task handles under Tasks, Select each one to set the priority):
Vikram