when I play alone I usually play at 120 fps but as soon as I join my friend in a squad my fps drops to 1- 30 why is this happening I have tried to validate my files and uninstalled the game and downloaded it again please help if anyone knows how to fix this. it's making my game unplayable

Since the new season has came out me and my friends have been playing the game a lot. Yesterday we all got on to play and all put our battlepass boosters and our normal renown boosters on as we were expecting to play for a long time so we wanted to grind out some of the battlepass as well as renown. But after finishing one of our games yesterday, I noticed that I got no rewards (rewards meaning XP, Battlepass points, Renown or Alpha pack percentage) from the casual game that I had just played, and it turns out that this same problem was occurring with my friends too as we all got no rewards at all. I tried restarting my game, restarting steam, restarting Ubisoft club even restarting by PC but the problem still continued.

Also I have just got on this afternoon and the same bug is still happening and I am very frustrated. Now not only did I waste my time playing the game to get no reward, but I have also wasted my money on the battlepass for the boosters to not even work.

It's not quite an issue that affects me playing the game. I want to understand what exactly is going on here.

After a certain patch, the game file was reduced to somewhere smaller than 50GB(without HD texture), I guess you guys know that. But since an update in early December last year, I find out my game folder is getting bigger and bigger, I am quite curious about this, so I decide to fully reinstall the game and try to find out what causes this. And I do find something there are a lot of files which names starting with somaething like a timestamp and ending with "StreamInfo.tmprec", "FrameDataStream.tmprec" and "StaticData.tmprec". They come up in groups, I mean for the same timestamp they have 3 different files ending with names mentioned before. For example a group of whole name of those files are "P15440_50_Y2022_M1_D16_H23_M58_FrameDataStream.tmprec", "P15440_52_Y2022_M1_D16_H23_M58_StaticData.tmprec" and "P15440_46_Y2022_M1_D16_H23_M49_StreamInfo.tmprec".

Those sound like they are kind of related to the game replays, but first, they are not located in "MatchReplays" folder under game folder(I mean "Tom Clancy's Rainbow Six Siege" folder), and second , after a small patch update I can't find like 1 to 1 match up between those files and my replays, and matchreplays only have 12 games at one time. I have like all this files since I reinstall the game. They are in total more than 6 GB! Thats quite a lot and they are growing when I play the game. 

I want to understand what are these and if I can delete them.