powerbi standard map scaling bubbles issue

Am having a hard time finding a way to scale my bubbles the issue is that when bubble is on auto it is not aggresive enougth as all points look similar and if bubbles is set to data range then its too aggresive. As well as this when there is no diffrence e.g i pick a market the bubbles are so small you cant even see them. I have 4 filters market, technology ,metric and period. the defult is all for markets i get the following chart. if you look at the very tiny dot light green it has a value of 22  whilst the still very small but visible light green is 23

now when i filter to a particular coutry lets say belgium the purple dot which is a good size now becomes  so tiny and areis barley visible because they all have the same value and therfore it useses the smallest possible dot. 

my bubble size in the actual visual is just the value avg in my chart 

i tried mangtitude and auto insted of data range but that looks like theres no change in the actual bubble 

which also is not very good. below is with auto. this also is not good as blue is  around 56 

and light green is 23 but that is not reflected in the bubble size

anyone have any solutions to this? i can only use standard map as well as this in my bubble map settings i 

have the following only

manually adjusting the size also is not very good 

so run out of ideas and options?