Warning: Since releasing this guide, PUBG has updated the FAQ on their forums to say that editing config files is against the Rules of Conduct, which could result in a ban. Edit the config files at your own risk.
After a week of low fps from the new update i finally found the solution! Note that this video only cover the ini. files settings. first tutorial so i forgot to mention other programs and setting in windows that can help with fps. luckly there are various videos on youtube that cover this.
disabling MouseSmoothing: bEnableMouseSmoothing=false
Engine setting: copypast