With this test program, I found that if you hold down the control button, it appears that the main loop executes quicker...

GLOBAL a%,b%,c%
AUTOPAUSE TRUE
a%=0
b%=0
c%=0
WHILE TRUE
PRINT "MAIN LOOP:"+a%+" ON_PAUSE:"+b%+" ON_RESUME:"+c%,0,0
SHOWSCREEN
HIBERNATE
INC a%
WEND
SUB GLB_ON_PAUSE:
INC b%
ENDSUB
SUB GLB_ON_RESUME:
INC c%
ENDSUB
Hold down CTRL and watch the Main Loop counter increase at a quite astounding rate...