Hey, thanks! now it runs perfectly.
Also let me compliment you for game performancies: it doesn't lag with motion blur, depth of field and bloom all turned on with full screen resolution (1366x768 on my end) using an old Intel HD 3000 integrated graphic card (year 2011) and with Linux Mesa drivers 20.2 x 64bit.
In fact usually I would force screen resolution to 800x600 and lowering quality to run recent Unity games at a decent framerate.
So, keep up the good work!