Lag after respawning

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EDIT: I have to mention that the lag spikes occur only if I don't have my spawn set to a bed... if I have my spawn near a bed it is completely fine...Tested it and it seems that when I repsawn on my bed the frames are low but not like lag spikes... and sometimes when i enter the world the fps is low then gradually climbing up in like 5-10 seconds. I have an idea and that is that the lag spikes are because the respawning chunks are somewhat not rendered when I die and the game is forced to quickly load them in... just a thought that could help you.

Please force a crash by pressing F3 + C for 10 seconds while in-game and attach the crash report (minecraft/crash-reports/crash-<DATE>-client.txt) here.