IDE very slow typescript / html

Hi, 

since the latest Update my IDE became ridiculously slow. Whenever i try to use some typescript related variables it takes up to 1-3 seconds to show me the autocomplete field. 
I already invalidated the cache, changed to the bundled typescript version but that did not do any good or changed anything.
Before the latest update i had no problems at all. Can i rollback to the older version?

Here are my settings:

IntelliJ IDEA 2019.1.1 (Ultimate Edition)
Build #IU-191.6707.61, built on April 16, 2019
JRE: 1.8.0_202-release-1483-b44 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
macOS 10.14.4

MacBook Pro (15-inch, 2018)
2,2 GHz Intel Core i7
16 GB 2400 MHz DDR4

VM Settings;

-Xms8192m
-Xmx8192m
-XX:ReservedCodeCacheSize=512m
-XX:+UseCompressedOops
-Dfile.encoding=UTF-8
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=150
-ea
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-Djdk.http.auth.tunneling.disabledSchemes=""
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow
-Xverify:none
-XX:MaxMetaspaceSize=1024m
-XX:ErrorFile=$USER_HOME/java_error_in_idea_%p.log
-XX:HeapDumpPath=$USER_HOME/java_error_in_idea.hprof