Having a problem with VBA and it's speed up

SO I'm using VBA, and I speed up a lot, and sometimes, the percentage speed goes from 700%-900%, down to 200%, like it's lagging or something like that, but it's basically slowing down, and I really don't want to stop using speed up, because then it'll take a really long time. Trying to play Pokemon Ruby, as a GBA, I got it frmo LoveRoms, so it should be good, but it still does it, and really annoying, anyone know how to fix it?
Also using Visual Boy Advance M878
Here are my VBA settings:
video=0
language=1
languageName=
frameSkip=2
gbFrameSkip=0
autoFrameSkip=0
vsync=0
synchronize=1
stretch=0
defaultVideoDriver=1
fsWidth=0
fsHeight=0
fsColorDepth=0
renderMethod=1
useBios=0
skipBios=0
soundEnable=783
soundOff=0
soundQuality=2
soundEcho=0
soundLowPass=0
soundReverse=0
soundVolume=0
ddrawEmulationOnly=0
ddrawUseVideoMemory=0
tripleBuffering=1
d3dFilter=0
glFilter=0
glType=0
filter=0
disableMMX=0
disableStatus=0
showSpeed=1
showSpeedTransparent=1
gbPrinter=0
pauseWhenInactive=0
useOldSync=0
captureFormat=0
removeIntros=0
recentFreeze=0
autoIPS=1
disableSfx=0
saveType=0
enhancedDetection=1
ifbType=0
flashSize=65536
agbPrint=0
rtcEnabled=0
autoHideMenu=0
skinEnabled=0
skinName=
borderOn=0
borderAutomatic=0
emulatorType=1
colorOption=0
priority=2
autoSaveCheatList=0
gbPaletteOption=0
gbPaletteCount=48
gbPalette=FF7FB5568C310000FF7FB5568C310000FF7FB5568C310000FF7FB5568C310000FF7FB5568C310000FF7FB5568C310000A4
rewindTimer=0
recent0=
recent1=
recent2=
recent3=
recent4=
recent5=
recent6=
recent7=
recent8=
recent9=
joypadDefault=0
autoLoadMostRecent=0
cheatsEnabled=1
fsMaxScale=0
throttle=0
LinkTimeout=1000
Linklog=0

So can anyone help me with this? It'd be really helpful tbh

bumpppppp