Hi Asma,
In my humble opinion, it depends on what you are trying to do.
I have printed some parts as fast as I could sacrificing strength just to make sure if screws would fit or just because it would be a "trasition" part which I thought I would modify and reprint. Some times I printed the parts ensuring strength and then found out I had to make some changes and reprint the part.
For speed ithout sacrificing strengthits more about your printer and the material used (I don't just mean PLA+ in your case but what speed the manufacturer allows and testing if you can stress them). For eample, my previous printer would go up to 12 hours to print a part while my new printer gets the jos done in around 3 hours... and even changing PLA for ABS (In my previous printer I had not connected a heated bed, was open and with such long times it was simply impossible). Also with some ABS I can even exceed the recomended manufacturer speeds increasing the print speeds (Although sacrificing some detail butstrength seems fine), other ABS brands won't allow such fast speeds at all. When stressing the material over the manufacturer values you must be carefull not to clog the nozzle. Yo may also speed things upchanging the nozzle... a0,2 will be slower than a 0,6 nozzle but much more detailed. A 0,4mm is more like the standard and offersa good relation between speed and detail.
Also different slicers make things a little different for example, on my old printerI was using Cura and on my new printer Creality. With the new softwareI find Gyroid infill as a great infill for strength, use of material and time.
During my old prints (as the new printer is quite new) I also foud out that the same material from different brands may print different; especially if you consider structural strength. The same way as some tend to do it better with different settings.
In my humble opinion, Gael's suggetions and with the size of the parts it will fit almost any material except thoes which are to flexible and not suited for the Inmoov project.
However it depends on your material, your printer, slicer, etc. It is a test and go... Today I had to throw a part as I did not add a brim and ABS started wrapping. Dependending on the printer settings I got some parts to print without supports and done did not succeed. For example, same printer, same material, same slicer,... but different printer settings on Cura (One with standard and another with custom settings) will give different results. Same thing for the same material (and brand) but different material settings on the slicer.
If you simply want to print it and build it I would suggest taking your time... afterall you will probablly have to wait between steps. I am currentlly waiting for some screws which hopefully will avoid having to modify and reprint some parts. I am currentlly uploading to thingiverse the part I had to modify.