WAD chart as JPG + performance

Dear BW'ers,

I have a serious performance issue on web reports. One of the main problems is the chart. On a web report of 400Kb, the chart itself takes around 300Kb (96dpi, 900px on 300px, 8 bit) and is GIF compressed.

Therefore I would like to make have the chart in format JPG. Is it possible to change settings of the IGS so that the format, maybe resolution also, can be customized (jpg, 72dpi,...)?

(if somebody also nows other work arounds to approve performance of web reports... please share it!)

Thanks in advance!

Best regards,

Yours faithfully 😉